Engine oil Shell or MOTUL

Rotella T6 0W40.

Phattbotti tuning has done oil sample tests in multiple oils and he says Rotella T6 5w-40 is the best bang for the buck.

Motul has been phenomenal for me

I use Castrol for the Nexon and Punch. The Safari uses Shell. Shell and Castrol are by far the best I've come across. Shell is much much better for the cold weather, by what I've observed.

Only used Motul 300V 5w30 or 5w40 since I bought the car new in 2009. Today I'm on 178k kilometers and still on the first chain and chain tensioner. No rattle, no oil consumption or what so ever.

I use Motul the best IMHO

My 96 xj I would put in 5 quarts of rotella 15-40 and a quart of Lucas oil stabilizer purred like a kitten

Our Blueprint crate 383 stroker calls for Rotella as an acceptable oil for daily use. Cheaper, too.

Run Rotella in my 80’s and 90’s BMW’s often. They seem to like it, and sometimes it’s cheap at Walmart.

I've used a number of different oils in my XS400 over the past couple years, can't say I've noticed much of a difference other than when I used a 15W40 the engine was a lot noisier, going back to 20W50 and the engine quieted down a lot.