Engine oil AMSOIL or ELF

I use AMSOIL engine oil and coolant in mine for the 5 years and have no issues in that department.

Using Amsoil. Nung pinalitan ko valve gasket ng 2008 Vios ko walang sludge. Gold ang loob.

I have use Amsoil European since new! 185,540km so far, and still purrs like a kitten, does not use oil, and the oil is highly rated!

I use Amsoil 20w40 in all of my semi truck motors. I change it according to what the lab says the condition of my motor and oil. I am going 100,000 miles on my over the road trucks. I go 25,000 on my power stroke and could go much farther.

I switched to 5w-30 instead of the factory spec 0w-20 and that slowed down my consumption. I use Amsoil to maximize protection with use of the "wrong" oil weight and I monitor wear with oil analysis and seem to have no change in wear from my 0w-20 use.

i use AMSOIL 0-20 in my Vezel. Runs great, maybe slightly better them LM.

I used Amsoil Signature when I was driving 1300 miles a week just so I could go two months between oil changes.

I change oil once per year, using a high-quality synthetic that meets specification 504. I generally drive 8 to 9 thousand miles per year. The maker of the oil I use (Amsoil) says to follow the car maker's change interval.

I never ran Pennzoil, but I have Amsoil. Amsoil is good, but too expensive.

I don't like dominator because it's not colored have to be extra careful to not screw up the jugs or forget to put it in. At least that's what I remember, I could be wrong.