Engine oil Castrol or AMSOIL

Castrol Engine oil

I run either 0w40 castrol full syn or 0w40 pentosyn in all my cars. After changing oil every 1000miles for 5oil changes and ever 3k after that my old corolla looked like a brand new engine inside with 125k on it when I pulled the valve cover to do a t-belt.

Pros: engine looked brand new
Mileage: 201150 km
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AMSOIL Engine oil

Used the rotella for the first 90,000. Switched to AMSOIL so I can change the oil half as often. I'm good with either one. The car has 146,000 and runs as strong as ever.

Pros: change oil half as often, car runs strong
Mileage: 90123 km
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Castrol Engine oil

For some odd reason it seems that mobil 1 iron numbers are a bit higher in the 1.8T. I switched to Castrol Syntec 0w-30 and my iron numbers went down.

Pros: iron numbers went down
Cons: fuel dilution went up
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AMSOIL Engine oil

0w-40 weight oil is great for the VR6. I've been using either Mobil 1 or AMS European Formula (5w-40) in mine since day 1. 85k miles later it still runs like a champ. AMS Euro oil is fantastic stuff, definitly worth every penny.

Pros: runs like a champ, fantastic stuff
Vehicle: Volkswagen
Mileage: 85000 km
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