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 …

Jul 19, 2004 · I'm using Shell Rotella-T 15W40.How does Delo 400 compare to Rotella-T ? Is it any better?Thanks Joe.

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 …

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 …

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 …

Mar 12, 2015 · However, for those of us who live in more temperate climates, an appropriate API approved conventional 10W30 or 15w40 HDEO provides very good diesel engine protection. …

Apr 7, 2021 · Went to Walmart over the weekend and noticed updated graphics/text on the Shell Rotella T4 15w40 containers. Upon looking at the back, I noticed that the oil is now rated SN …

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 …