Engine oil Mobil or LIQUI MOLY
I use LiquiMoly 5W-40, no issues.
Even tho the other oil also meets the minimum requirements the manufacturer suggests, paying the few extra pennies for even better oil is always worth it.
On my first oil change I used Mobil One Synthetic 5w30. That's what most people recommended as well, at least as far as being able to stop into a store and grab some real quick. There's probably better stuff that's pricier and harder to find.
Got some mobil 1 and it feels pretty good.
I've noticed my mk4 2.0 AZG with 250k miles uses 1.5-2 quarts of Mobil 1 in between 4k mile oil changes vs 1L of liqui moly.
When I put Mobile 1 (found a killer deal $$$) in my Golf, I noticed a bit more engine noise vs LiquiMoly. I'd say you'd be fine with both, but the nod goes to LiquiMoly if you want a very quiet engine.
I use it in my MK4 1.8T. Tuned with 212K miles on original engine and turbo. Still going strong, no complaints.
Therefore, although I have used Mobil1 synthetic oil exclusively in all my vehicles for more than 30 yrs, and even though M1 0W40 is VW 502 approved, it is not the recommended viscosity, so I now use Liqui Moly Leichtlauf high tech 5W40.
My ALH has only seen Mobil1 Turbo Diesel Truck oil. Car has 330K mile on the original turbo and still kicking.
My Good ol' Beast only gets Liqui Moly 5W-40. Has just 127k miles on it. it runs the best on it and is rev Happy too.
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