Oct 21, 2021 · I have been doing some research on the various Rotella 15w40 oils and have a few question hopefully you all can help with. I have been using the T4 claimed "synthetic …

Aug 10, 2021 · The Rotella is not JASO certified and per Shell according to their inhouse testing they say it meets the spec. I use Valvoline Full Synthetic Motorcycle oil in my Ninja 650 that …

Jun 3, 2021 · Rotella T 15w40 used to be a good oil for '60s cars after ZDDP levels were reduced when cats came in. The numbers matching guys have switched to the boutique oils with …

Jun 28, 2017 · The reply I received from Shell this morning. Enquiry: Change in Rotella T4 with API SN rating Response: Hello Steve, Trust you are well. Rotella Multi-grade oils are still API …

Mar 15, 2015 · Noticed Shell has a Full Synthetic 15w40 and 0w40 added to their T6 offerings. Prior to this the T6 was 5w40. Not sure I see a reason for 15w40 Full Synthetic when there …

Oct 21, 2005 · I have only used two brands of oil 15w40 Motorcraft originally when the dealer used to change the oil and as of the last 2-3 oil changes I went with the Shell Rotella T 15w40. …

Mar 19, 2022 · I was changing my oil on my c2500. It has a tbi 5.7 and my oil of choice is rotella t4 15w40. It's a good 40 weight oil and in ms it dosent get cold enough (often enough) to worry …

Jun 21, 2017 · Newby here and 1st post. 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 …

Jul 9, 2018 · Certain Rotella T4/T6 product labels say "meets the performance requirements of" JASO MA/MA2. This does not constitute a license or approval, it is just a statement by the oil …

Dec 14, 2015 · Shell Rotella Triple T 15W40 HDMO has been in the engine for 1000 miles...looks good, will be changing soon but I suspect the results are positive. Very little loss during cycle …