He may be using it for the 15w40 weight for noise or lower oil pressure. I ran Rotella in my 94 F150 with the 5.8l gas engine because I bought it with a slight knock. After a while I dropped down to the 10w30 Rotella and ran it for year, lifted mud truck driven daily and in the woods on weekends. It will be fine, just get some clarification on why. I currently run Rotella 10w30 in my 4.2l Envoy.
Tried other brands pero Shell pa rin talaga
I only run 5-40 Full Synthetic on my Armada and all my vehicles in the past. I've never had an issue and only changed the oil once a year or whenever 7500 miles hit. As for what brand, Shell Rotella T6 5-40.
Rotella T6 5w-40 is what I’ve ran in the car ever since it was tuned and I get great feedback from blackstone labs when sending in my oil for analysis.
Shell long ride na gamit ko ever since after ko mag 500 odo sa adv 160 ko, 10k na ko now wala naman naging problema, pati gear oil ko shell na.
My experience sa long ride, malamig sya for my scooter. Ayun yung ginagamit ko after mag general pms. Better sya sa ibang nasubukan kong engine oil like petron.
I would order Shell Helix for £20/4L online instead.
I have used Shell Rotella T6 for 19 years on this engine with no issue.
My car runs on 5W-30 and 5W-40, fully synthetic. Been running on Synthium and Shell Helix. Honestly, feels the same
Bmw original coolant is the only way to go. I made the mistake of using shell coolant once and it froze, causing a hole in my radiator.
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