Engine oil Mobil or Shell

Didn't double check, but I bought [this](https://www.speedwaymotors.com/Mobil-1-Supercar-Full-Synthetic-Motor-Oil-0W-40-Dexos-R-Case-6,495272.html).

Mine arrived as advertised.

There's literally only one oil that is certified for use in our cars: Mobil 1 Supercar. Nothing else has the proper Dexos R certification.

Been using mobile 1 5w-40 Syn Euro. Fixed my vanos code.

I use 0w-40 euro blend Mobil 1 in the winter and royal purple 5w-30 in the summer and usually try to get an k&n filter or something of similar quality it’s not always about the name but its definitely worth some research

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.

Ran t4 10w30 in my 95 Cherokee for the whole time I had it and it loved in. Never ran better

mobil 1 is trash. i go with castrol5w40 or motul 5w40 or rotella diesel 5w40

I usend to run syn 15w50 in my tired old vr6 all year round, it helped with seeping issues, lifter noise and all if that. but the oil pressure would be through the roof during first start. so I'd set aside a few mins in the morning to let the car idle, relax, listen to a song and let it get some heat in it. on a normal day, the star up pressure would be .5 bar past the filter bypass (10 bar), warm idle was 2 and a bit, and everything above 3.5k was back to the bypass.