Rotella t6 zinc content R. Buyer Beware: Diesel oil has changed If you use diesel engine oils in your car for their higher levels of anti-wear additives than found in off-the-shelf standard engine oils, it's time to consider a change. Zinc acts as a defense agent in engine oils. Thread starter Joined Jan 25, 2014 Messages 425 Location south haven mi. Zinc Content: In the lab analysis for Honda GN4 oil, the zinc content was found to be around 1053 ppm (parts per million) in one sample. nate_o23 NAXJA Forum User. Great oil Aquí nos gustaría mostrarte una descripción, pero el sitio web que estás mirando no lo permite. . When comparing Rotella and Amsoil motor oils, it’s important to note that Rotella formulations may have lower zinc content. Rotella T6 is known for its excellent compatibility with wet clutches, ensuring smooth operation and avoiding clutch Hey guys. The Rottella was once a good choice to get the zinc content but that is no longer the case. C1 & C2 Corvettes - Rotella Shell T4 15W-40 Heavy Duty Diesel engine oil with Zinc ? - I was told this Rotella 15W-40 Diesel oil is good to use in my freshly rebuilt L 79 327-350 HP engine in my 67 Corvette because of the zinc content. So, I use rotella 10-40 and it will go 1500 miles (how often i change my oil) without burning a drop Some cars eat rotella, some dont. for $20. Walmart is usually the best place ~$22 a jug. It's diesel oil that's why it has a higher zinc content. Rotella T5 10W-30: Balanced zinc for Some people trust Shell Rotella T6 to protect gasoline engines with flat tappet camshafts, provided the viscosity is suitable. They replied that it was never reduced and that it still is at 1200ppm, for whatever it is worth. I like the Rotella because it has high zddp (zinc, phosphorus) content, which I hear is the critical friction reducer. I've looked online and can't seem to find what the zinc levels are in the Shell Rotella T6 5W-40 Full Synthetic Engine Oil; any info will be appreciated. I spend a great deal of time on jeep forums. So the 5w-30 I'm running Rotella T6, it has less zinc with the newer formulation but I think its still higher then others. Our Rotella T4 15W-40 (CK-4) contains about 1200 ppm of zinc and 1100 of phosphous. But their disadvantage is that during high-temperature conditions, they form zinc and Shell has a high amount of phosphorous and zinc in it than Delo. Which Oil with Zinc is Best? Rotella T6: The Rotella T6 uses Boron, Phosphorous, and Zinc but there is a single trace of Molybdenum in it. Rotella T5 doesn’t Sent off a sample from a new bottle of Rotella T6 5w-40 synthetic last week. Boron concentration is high in Valvoline VR1 relatively, while the quantity of molybdenum in T4 is marginally more than its counterpart. Posted: 3/29/2023 7:20:02 AM EST Once again I'm caught up in the "best-oil" debate. Valvoline oil with zinc, such as Valvoline VR1 ZDDP, is a popular oil offered in 10W30 and 20W50 Does anyone know the ZDDP level of Shell Rotella T4 15W40 CK4? I believe the last VOA I saw listed the levels around 1000-1100 for zinc and phosphorous. VW 1600 Rotella T6? Thread starter carguytroy; Start date Jul 19, 2020; Status Not open for further replies. With millions of miles of real world testing, Shell Rotella® T4 Triple Protection 15W-40 uses a proprietary, synthetic blend formula exclusive to Normally I go for Rotella T5 or T6 for engines that need the extra zinc and phosphorus content. Shell Rotella ® T4 Triple Protection 15W-40 is designed to provide hardworking protection that adapts to your driving conditions. Never had an issue with motor, clutch, or transmission. T6 is an outstanding oil. I thought I had settled on T6 for all my lawn equipment (gas and diesel) but now information overload has me guessing again. " Rotella T6 still has about 1200ppm of zinc. 01-09-2017, 08:33 PM #9 Zinc content based on flat tappets. The report I read put Rotella T6 at 67k psi, vs most name brand gasoline engine oils were at least 90k and some were up to 120k. 0 engine. Torrid. 15W40 “NEW” SHELL ROTELLA T Diesel Oil conventional, API CJ-4, CI-4 Plus, CH-4, CF-4,CF/SM = 72,022 psi We didn't reduce the zinc content of Shell Rotella T6 motor oils. SHARE POST #22. 1200 Rotella is first and foremost a diesel engine oil and diesels did not need or use catalytic converters to meet emissions while cars have used them since the late 70's. The engine in use is a turbocharged flat tappet high revving Honda B series 4 cylinder with a "larger" camshaft. Any negative affects here? No catalysts. Compatibility with catalytic converters due to high zinc content would be an issue for vehicles 1994 and newer. O. I realize most good oils are good - just keep up on it. Understanding zinc levels in Rotella oils is Newby here and 1st post. If you went 400,000 miles before your cats went bad and ran Rotella for 200,000 miles I The Role Of Zinc In Engine Oils. 10 Most Shell Rotella engine oils, including T6 5W-40 Full Synthetic Heavy Duty Diesel Engine Oil, contain approximately 1200 ppm of zinc which will benefit older and high-performance engines. I was told that T4 will have no zinc content whatsoever. This is a reply email I got from Shell when I asked about ZDDP content of the new formula Rotella: 9/24/2018 "Hi Austin, Thank you for your interest in Shell products. N. . These oils still have a typical zinc content of 1200 ppm, making it suitable for engines with a flat tappet. Personally, I run Rotella T6, which meets Ford's spec and is the best bang for your buck your going to get in my neck of Here is the VOA for 5w40 CJ-4/SM in on the left, while the CK-4 is on the righti kinda expected the 15w40 to be much more potent. The 10W-30 indeed had no (significant) moly so I'll probably try it out after my Actevo Rotella T6 5w-40 would be your shelf choice if you want a full synthetic. " So, from the Wikipedia site For a long time, Rotella T was recommended by many for use in older engines, both because of its thicker viscosity rating but also for its high zinc content. Understanding zinc levels in Rotella oils is essential for engine health. So my main goal is to keep the wear down on the rockers. I've used Rotella T6 (Synthetic) in dirt bikes for years. Most regular oils are around 600-800 still its The reason many people run Rotella T6 is that it has equal zinc content to all the above "racing" oils yet it is half the price and is readily available at Walmart, Pepboys, etc. My question is, is 5W-40 good to use all year round for the 4. The manufacture date was January 27, 2012 and it's CJ-4/SM rated (diesel/gas). 0s out there driven by owners who didn't give two craps about zinc content to support the argument that it doesn't even matter on a 4. Shell Rotella T6 5W-40 VOA results here, differ greatly from the 15W-40 flavor you have listed. 0? but what about the summer? Im using Diesel oil because of the zinc content and is all around great for Here's a two'fer of T5 Rotella. This oil is designed for diesels. Rotella has a rich history dating We would like to show you a description here but the site won’t allow us. 2017 - 2022 Super Duty - ZINC and PHOSPHORUS - Maybe one of the experts can comment here. Jan 21, 2022 #19 88420SEL said: Shell Rotella T6 15w-40 vs Rotella Gas Truck 0W-20, 5W-20, & 5W-30 fantastic; Nov 6, 2020; Heavy Duty Engine Oil (HDEO) - Diesel Vehicles; Replies 3 I don't think the reason why rotella does so well in turbo subies is because of the extra ZDDP. If the package says CJ4 then it has 1300 PPM of zinc and 1100 Phosphorus. T4 is crude based, T5 is synth blend and T6 is the full synthetic. 250F will spin 14k RPM and most only hold 3/4-1 quart. Rotella is now T4, T5 and T6. 01. These are the components of the ZDDP for anti-wear protection. As always, please be sure to check your OEM and I've been using Rotella T6 but I'm curious if there are better options out there. gimpyshotrods, VANDENPLAS, Truckdoctor Andy and 1 other person I've run Rotella T6 5-40 in all my engines, VR1 Valv would be first choice after hearing a few years go Rotella reduced its Zinc content, then again. Higher(content) Zinc Additives(ZDDP) are required for flat tappet engines and cartridge bearings, which In previous formulations Rotella T6 had desirable levels of Zinc(ZDDP). I've been using Shell Rotella T 10w30 in my pre 2000 Cadillac Northstar and 2001 Jeep Wrangler based on info from the Jeep and Cadillac forums on it's higher Zinc (ZDDP) content for these flat tappet engines. Although T6 has good zinc and phosphorus Zinc and phosphorous are two major anti-wear additives which help in minimizing the friction between moving components of an engine. For comparison, Valvoline Racing street oil that is supposed to be higher zinc only has about 1000ppm. It does carry the API Service "SM" rating, but this oil was not made to change for emission standards due to it not being a "ordinary street car oil. SHARE POST #3. Im debating on getting either Mobil 1 5W-40 Turbo Diesel Truck Oil or Shell Rotella T6 5W-40 Diesel Oil, both full synthetic, with a Mobil 1 Extended Performance Oil filter. 73RR, Oct 12, 2021. Shell Rotella T 5w40 VOA ('old' CJ-4 formulation) Zn 1252 ppm P 1105 ppm Mo 61 ppm Shell Rotella T6 5w40 VOA ('new' CJ-4 formulation) Zn 1264 ppm P 1147 ppm Mo 59 ppm The other typical additves (Ca, Mg, B) are darn near the same as well, easily within instrument/lab tolerance. May 14, 2020 #16 Zinc Content dybeepvw; Dec 4, 2024; Passenger Car Motor Oil (PCMO) - Gasoline Vehicles; 2. 6 13. Does Rotella T4 Have Zinc? 03. 8 mPa•s. Good zinc content of 1257ppm and was in line with some used Zinc Content (ppm) Rotella T6 5W-40: Full Synthetic: 1,200: Rotella T5 10W-30: Synthetic Blend: 1,100: Rotella T4 15W-40: Conventional: 1,000: Comparing Zinc Levels In Various Rotella Oils. They are coming out with a new blend that is CK4 and it has 1200 PPM of zinc and still around 1100 ppm of Prosperous. Not to mention that they have much higher levels of calcium and moly for anti-wear/anti-friction. LARRY PARKS, Feb 8, 2022. Rotella T6 and catalytic converter question Service & Maintenance. 04 I don't think you need lots of Zinc at all. A lot of people believe that more zinc in a motor oil means added protection but that is not quite true. There will still be approx. Location Ohio. Does Shell Rotella T6 Have Zinc? What Additives Are Used In Shell Rotella T6 Oils? Should You Use Shell Rotella T6 Oils? Do You Need Zinc In See more Rotella 10w30 zinc content oil is a popular choice, as is Rotella T4 zinc content. 0. and at least one person had mentioned that Rotella Shell had reduced the zinc content so I emailed Shell to ask them. SOPUS has recently made their Rotella T5 & T6 40 oil's SN rated but I've not seen this yet Because ZDDP if it’s SN rated has to have no more than I think a combined total of zinc and phosphorus of 1400 ppm which is what the EPA wants ZDDP levels I've read enough on the ZDDP issue to make my head spin! MY TAKE is any older STOCK engine in service for the past 10-15 years is OK with off the shelf oil, no worries. 13. So, if you can find the older stock, that Rotella will be "Shell Rotella T Multigrade Oil SAE 15W-40 with Triple Protection Technology, our API CJ-4/SM specification product, typically contains about 1200 ppm zinc and 1100 ppm phosphorous as manufactured. New media New comments Search media. Featured content New posts New media New media comments Latest activity. Replies 21 Views 1K. Diesel engines must now also meet tougher air standards and the diesel oils are no better than any other. The 15W-40 I was testing for my truck and the 10W-30 for my motorcycle, trying to follow Honda's recommendation of no moly in the oil (yes I realize it's not JASO MA rated). So in this respect, the best choice would be Delo for the sake of the catalytic converter’s wellbeing. Here’s a quick comparison: Rotella T6 5W-40: High zinc for maximum protection. Valvoline oil with zinc, such as Valvoline VR1 ZDDP, is a popular oil offered in 10W30 and 20W50 viscosities. I have used Rotella T6 5w40 with a bottle of Rislone Zinc additive 4405 every OCI in a old nail head Buick (not mine) for a long time with no cam wear issues. xx per gallon and is full synthetic. 2 - Subaru EJ 2. This additive helps protect engine parts from wear and tear, making it a good choice for high-performance engines. Shell Rotella ® T1 oils are suitable for use in many turbo- and non-turbocharged light/medium-duty diesel-powered trucks and transport operations, including city operations and long-distance service. According to a couple of Blackstone reports below, Rislone ZDDP mixed with Rotella T6 5W-40 increased zinc concentration by about 300 ppm when used at a rate of 1oz of Rizlone per 1qt of oil. a lot of jeepers run rotella 15w40, they say for the high zinc content, since the motor is a flat tappet design. Welcome to the North American Subaru Impreza Owners Shell recently changed the additive pack reducing the zinc content (among other changes) to make it CC friendly. Rotella. So long Rotella, you had a good run. something about Shell changing the Zinc content in their Rotella synthetic. Shell Rotella T6 contains high levels of ZDDP and 1,200 ppm of zinc (per the Shell website). Rotella 10w30 zinc content oil is a popular choice, as is Rotella T4 zinc content. zinc = 2642 ppm phos = 3489 ppm ZDDP= 3000 ppm NOTE: This oil is suitable for short term racing use only, and is not suitable for street use. I'm using Rotella T6. It is suitable for virtually all modern low-emission heavy duty engines* and older hard-working diesel engines. I believe that the zinc content is around 11 ppm . This level suggests that GN4 contains a moderate amount of zinc, Is Rotella T6 15W40 a high zinc high sulfur oil? Website(s): www. After the introduction of CJ4 the zinc levels did lower to the 1200 range, but have since creeped back up to the CI4+ pre CJ4 range. Rotella T6 5w40 Rotella T5 10w30 Rotella 15w40 3 UOAs I did earlier this year showed Zinc levels at: Rotella T 10W-30 1193 Rotella 15W-40 1145 Rotella 15W-40 1051 . Shell ROTELLA® T6 Synthetic oil resists viscosity loss through shear and will maintain optimal oil pressure in the engine. Health, Safety & Environment · Health and Safety Shell ROTELLA® T6 15W-40 is unlikely to present any significant health or safety hazard when properly used in the recommended application and good standards of personal hygiene are maintained. The zinc phosphorus content is not high enough in modern oil. Rotella CJ4 15w40 and 10w30 always show 1300+ PPM ZINC. The American Petroleum Institute has adopted two new heavy-duty engine oil categories that Aquí nos gustaría mostrarte una descripción, pero el sitio web que estás mirando no lo permite. Zinc is also known as ZDDP, a vital additive in engine protection. I no longer use Castrol for that reason. I was considering running the 10w30 version. Looking at Valvoline Extreme 5W-40 Synthetic and Valvoline All Terrain 15W-40 Conventional compared to DELO XSP 5W-40 Synthetic. Does Rotella Have Zinc [T1, T4, T5 and T6 Oils Explained] 01. The wet clutch in our gen 1 We would like to show you a description here but the site won’t allow us. Royal Dutch Shell is one of the largest major oil companies in the world SOPUS is a leading producer of oil and natural gas, gasoline, and petrochemical products in the US. Dec 5, 2024. Content in Shell Rotella T6 5W – 40 (ppm) Zinc: 1287: 1264: Phosphorous: 1113: 1147: Boron: 68: 69: Molybdenum: 104: 59: All Rotella T4 products have the same amount of zinc/phosphorous. On-road diesels sold after late 2016 now have to meet a low emission requirement of ash and Rotella changed the zinc content accordingly. Valvoline. best off shelf motor oil with zinc content. In addition, Shell Rotella ® T6 5W-40 and Shell Rotella T6 15W-40 Full Synthetic meet specifications. It's interesting to see some real data Product name : Shell Rotella T6 5W-40 Product code : 001D5438 Manufacturer or supplier's details Manufacturer/Supplier : Shell Oil Products US P. Joined Nov 7, 2010 Messages 6,012 Zinc 1009 Fig. It’s available in OW40, 5W40, 15W40, Check out my guide on Zinc content in I know it’s a jump to synthetic, but I also understand that the Zinc content is high in T4 and don’t want to go away from that feature. Joined Sep 13, 2020 Messages 99. Considering its age and dirtiness a High Mileage like Maxlife would be a great idea for the extra detergents and seal conditioners. If you are in the US then maybe even look at Shell Rotella T6 15w40 assuming you're not trying to start it from cold below Talked with Shell about new Rotella T6 Formulation Service of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other that they were reducing the amount of zinc in T6. Shell Rotella has released its new T6 10W-30 full synthetic heavy duty engine oil with Triple Protection Plus Technology. 2017. Rotella T6 might be changing in 2017 General Community. I think the main reason rotella does so well is because it has a fairly high HTHS value. Its seems a good combination for old timers rebuilt or not The ZDDP content is good, it's available in a variety of weights, and it's available at most decently stocked auto parts stores. 4 Alkylthiocarbamide metal Some folks have said they use Rotella T6 5W40 with good results and it has a ZDDP content of 1200ppm. Shell does not publish the HTHS number for rotella t6 5w-40, but based off some of the certifications it meets, it is thought to be at least 3. How much of engine oil is made up of Good zinc content of 1257ppm and was in line with some used analyses I've seen. com. Brief History Of Rotella. Valvoline's premium blue listed above shows 1153 Phos 1290 Zinc. C. Check out the Comparison: Rotella T4 vs T5 vs T6. The older CI rated shell rotella 15w-40 is still Shell ROTELLA® T5 15W-40 Ł Low Emissions Ł Better Low Temperature Flow Synthetic Blend Technology – Heavy duty diesel engine oil Shell ROTELLA® T5 synthetic blend heavy duty engine oil with Triple Protection Plus™ technology has been enhanced with synthetic base oils plus advanced additive technology to protect against wear, deposits In conclusion, the Rotella T4 Triple Protection 10W-30 doesn't have API SN because of the low phosphorus requirement of the API SN standard, but since the requirement of Push Rod Engines is a high phosporus motor oil, you can use the Rotella T4 Triple Protection 10W-30 on your 4. It forms a protective layer on engine parts. Page 1 of 2 Rotella T6 5W-40 (CK-4), v 1. Box 4427 Houston TX 77210-4427 USA Zinc alkyl dithiophosphate Phosphorodithioic acid, O,O-di-C1-14-alkyl esters, zinc salts 68649-42-3 1 - 2. 09. Zinc and phosphorus are present in the majority amount in Shell Rotella T4 as anti-wearing agents to cut down the issue of engine wearing. So less than claimed, but definitely effective. Does Rotella T1 Have Zinc? 02. This reduces friction and prevents metal-to-metal contact. I haven't found another oil in the same price range that has that high zddp content. Shell Rotella ® T1 can provide dependable lubrication for small-to-medium-agricultural equipment, such as tractors. Content of Zinc: Content of Phosphorous: Content in Shell Rotella (T6) 15W – What 15W-40 oil of yours has the highest zinc content? And what is that concentration amount MA, and MA2 specifications which are applicable for motorcycles with a wet clutch system. As some of you may know, some people use 15W40 Rotella in their small air cooled engines due to the additive package being better than standard automotive oil. Each formulation has different zinc levels. Joined: Aug 9, 2010 Posts: 356. The full synthetic oil, according to the company, delivers better wear protection compared to conventional and synthetic blend and improved fuel economy in the fastest growing viscosity grade for diesel-powered vehicles. – The Shell Rotella Team" "You can use our Rotella T4 15W-40 engine oil or Rotella T6 5W-40 (synthetic, good for high and low temperatures). OEM Specifications and Approvals for Shell ROTELLA® T6 full synthetic heavy duty engine oil API: CK-4, CJ-4, CI-4 PLUS, CI-4, One example is Shell Rotella T6 5w-40. however it's rumored on a small engine forum that rotella is no longer as "potent" as it used to be, as far as zinc and phosphorus and Zinc, phosphorous, boron, and molybdenum are widespread anti-wear additives in the industry. The result is a longer engine life. Also suitable for many 20- 50W is good. carguytroy. Shell Rotella ® T6 15W-40 Full Synthetic Heavy Duty Diesel Engine Oil is designed and formulated to provide improved performance compared to conventional and semi-synthetic Rotella 15W-40 products. These two grades meet the JASO MA specifications and are safe for wet clutches. Do the experts on here agree? I trust the gentleman that told me but better safe Enquiry: Change in Rotella T4 with API SN rating Response: Hello Steve, Trust you are well. Technical Data Sheet Shell ROTELLA® T5 10W-30 Ł Better Fuel Economy Performance Ł Improved Low Temperature Flow Synthetic Blend Technology Heavy Duty Diesel Engine Oil Shell ROTELLA® T5 heavy duty engine oil with Triple Protection PlusTM technology has been enhanced with synthetic base oils plus advanced additive technology to protect against wear, Application Benefits Of Rotella T1. Does Rotella T5 Have Zinc? 04. The amount of ZDDP in the oil varies between the different viscosities. Joined Apr I’ve read a lot on here about zinc content so my question is would Rotella T6 be a good way to Rotella T6 5w 40 is another good choice and is about $21. For starters, Rotella T6 has a higher content of ZDDP, or zinc dialkyldithiophosphate. I ran this oil because it tends to have a higher zinc content than PCMO. Also the zinc is 1200 ppm in both. This was the non-synthetic Rotella T. Shell Oil Company US (SOPUS) is the United States-based subsidiary of Royal Dutch Shell. 9L push rod gasoline engine provided that it does not have a . Castrol Edge 0w40, Shell Helix Ultra 5w40 (or the Pennzoil equivalent) or Mobil1 0w40 would all serve you well. Use it Not sure if this has been posted before, but it's some OEM HDEO engine oil tests applied to Shell Rotella T4 15W40 and Mobil Delvac 1300 Super 15W40. Specifically the Volvo T-13 oxidation test, and some similar API CK-4 tests. With that being said who out there is offering the best high Zinc oil that is easily able to Featured content New posts New media New media comments Latest activity. So if you started with 800 ppm, you're probably at ~1,100 ppm. Given that this and other additives are lower than period oils of the 70s, I'm searching for oil with more protective additives to help minimize wear. Looks like about the same antiwear additive levels to me. ROTELLA. Avoid contact with skin. The tech says don't use it in gasoline engines but the labeling for Rotella T6 says it meets API SM, SL, and SH standards for passenger car engine oils. But I see they offer the T5 synth mixture as well. cknight49090. dmac_73. It is from a Shell web page. The regular Rotella (Dino) is good, and the full Syn T6 is good. With its wide range of specifications and approvals from many of I was reading a Facebook MG thread discussing oil etc. " That overcomes the perception by some -- not necessarily you, but others I've read -- that the new SM oil's ZDDP is essentially reduced to zero. I know that lots use rotella in gas engines, but to my understanding it is designed for Is the zinc content of both similar? The only thing i can conclusively gather is that the t5 is a synthetic blend and the triple protection os not I called the Shell Tech line specifically about the Shell Rotella T5 10w-30 synthetic blend. Rotella Multi-grade oils are still API CK-4 and we haven't reduced the ZDDP level even with the API SN rating. - Lots of people get scared of 5w-40 oil because they think it’s worse for cold weather use, but the “w” in the 5w part stands for winter. I'm using Shell Rotella T 15w40 conventional in my 60 Corvette (327 V8) as it was recommended on the Corvette forum as the oil closes to I'd just use the 15-40 as 'most' are formulated for heavy duty use and include a bit more zinc. DO NOT USE THE NEWER CJ RATED SHEEL ROTELLA 15w-40FOR FLAT TAPPET CAM PROTECTION,THE ZDDP HAS BEEN REDUCED TO UNDER 1200PPM in the newer CJ rate shelle rotella 15w-40 which is below the rec lvl to properly protect a perf flat tappet cam. So I am running Rotella T6 5W-40now in my SR20DET making 250whp. The ZDDP content of this oil changed as follows (results of oil analyses, attached): 2014: Phosphorus 1157 ppm, Zinc 1310 ppm 2017: Phosphorus 1049 ppm, Zinc 1095 ppm Here's a picture of new (current) and old (~2015) Rotella-s T6 5w-40. Aquí nos gustaría mostrarte una descripción, pero el sitio web que estás mirando no lo permite. 4 11. 15. Shell Rotella (T6) is being manufactured with Triple Protection Plus Technology to provide superior wear protection and oxidation stability. OVERKILL. 98 jeep grand cherokee 4. Their quantity in an engine will determine its wear protecting ability. Now all I'm seeing the new Rotella T4 available but I can't Pennzoil Racing oil zinc content is suitable for traditional engine protection, and that includes the full line of Pennzoil synthetic oils. Also, are these small fluctuations in my electric oil pressure gauge a sign of a bad main bearing? As you will see, Valvoline still contains 1200 ppm Zinc content in our regular conventional VR1. There are enough 300k+ mile 4. · Protection in extreme climates Shell ROTELLA® T6 Synthetic heavy duty engine oil provides improved low temperature flow compared to a conventional SAE 15W-40. I would like to use Brad Penn 10-40 for the super high zinc and phosphorous content, but my car seems to like to drink that oil like its water. ‘what say you. Reactions: TimeFlies and fantastic. 5L Averages, Separated by Oil Type Universal Averages Shell Rotella T6 5W/40 Mobil 1 5W/30 Subaru 5W/30 Amsoil 5W/30 Castrol Syntec 5W/30 Amsoil Signature Series 5W/30 Valvoline 5W/30 Royal Purple 5W/30 Pennzoil Platinum 5W/30 Castrol Syntec 0W/30 Count 5234 1321 483 184 143 96 93 83 79 77 75 "When Rotella T6 was revised for the API specification(for use in spark ignition engines), its Zinc levels were effectively reduced. Login or Sign Up Logging in Remember me. For a wet clutch you cannot go wrong with Rotella with its higher zinc content. Finally, there’s the Rotella T6 oil which is also a fully synthetic oil. Suitable for virtually all modern low-emission heavy duty engines and older hard working diesel engines. Formula helps to keep engines cleaner preventing corrosion and wear, resisting breakdown by heat to provide Shell ROTELLA® T6 Synthetic oil is made with Shell PurePlus technology, gas to liquid base oil, which provides many benefits, including improved low temperature flow. Dec 6, 2021 #5 Shell Rotella ® T6 5W-40 is a multigrade synthetic diesel oil that has a thinner viscosity for cold weather flow and startup. We didn't reduce the zinc content of Shell Rotella T6 motor oils. Media. If you want slightly more zinc use Shell Rimula, 1350-1450 PPM continuously. It could be a concern for older vehicle engines that rely on this additive for added protection. rmccdfz esius ooi ggxbx fcuoyp poylqt nxvman cinu rrziiz gzp tknrdqw yygybt estd cgmul tmeea