Engine oil LIQUI MOLY or PENNZOIL

Liqui-Moly is also good, as are Amsoil and Pennzoil Ultra Platinum. I never had good luck with Mobil 1.

Liqui-Moly Molygen 5w40 every 3k-ish miles for me. I like Castrol, just prefer the LM. The quality is supposed to be fantastic.

Liqui Moly has some green stuff I put in my euro cars. It's pretty cool for finding leaks.

I keep a running supply of pennzoil ultra platinum 5w30 around as 4 of our vehicles use it. I start to worry when I have less than 10 quarts.

Liquimoly 5w40. That stuff is money. Used to use Castrol in my RS4 but constantly was consuming between changes. Switched to Liquimoly and it stopped. Now i use it in all my vehicles including my bike. I just wait til NAPA has em for half price as they do right now then buy jugs. Just changed the Golf.

I use liqui moly as well (4200 long life), seems like it doesn't really matter, but picking oil with the correct grade (507/505) is key.

Pennzoil because it runs about 20°F colder for me.

Pennzoil. I've run conventional, semi synthetic, and full synthetic. Nearly 200k miles, still kicking like a mule. 7500 mile oil changes on the reg, some to 9000. No signs of slowing down.

LiquiMoly!!!! Ask NGP in Maryland. They built my motor 7 years back. I used Mobil1 for 20 years. It's good stuff. But LiquiMoly is the ticket for me now.

Pennzoil ultra platinum often goes on sale or has rebates, I'll stock up a couple years supply when it does.