Engine oil PENNZOIL or AMSOIL

I like using Amsoil because its very good at withstanding heat.

The dreaded Pentastar tick is GONE! It took about a week of regular use for the noise (on the passenger side of the top of the engine) that used to show up after idling for a few minutes to completely disappear with the new oil. I’m sure plenty of oils work fine but I went with Amsoil because my brother gave me a gift card and referral coupon for my birthday. I run 6 qts because I already have the Baxter spin-on adapter. Which requires a little more oil. The dipstick reads “low” at 5 qts whether I’m idling or checking it after the Jeep has been off for ten minutes. With 6 qts it sits right and holds a steady 30 PSI and never spikes. Such a relief!

Amsoil Signature 5W20

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!

Great oil, I go with the Ultra Platinum. So far it's been the absolute quietest (based on subjective valvetrain sound) and smoothest driving oil I ever used. I tried OEM, Valvoline, Castrol. Nothing was as smooth as the Pennzoil even after a few thousand miles. I still change it every 5k for peace of mind.

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.

Amsoil is overkill for ur car not worth it. Get Mobil 1 great oil do 5w30

Amsoil as an oil is trash. We used it for years and our reports were always tetering.