Engine oil Shell or FUCHS

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.

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 can whole heartedly recommend Fuchs Silkolene oils, it actually quieted down my sv compared to Motul.

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

It seems to do a fine job lubricating, but, everything I ever put it in started consuming oil. They all stopped once I switched to other oils.