Customer Ratings & Reviews

The best oil I ever came across.

Engine runs more quiet, fuel economy improved, with overall increase in engine performance.

I have used Amsoil 5W-20 Signature Series synthetic oil for three years now. This oil was recommended by the manufacturer of Ram trucks as the synthetic oil to use in 2019 Ram trucks. This is by far the best synthetic oil that I have ever used. The oil is still very clean at oil and filter changes. I will continue to use Amsoil products!

I use the Amsoil Signature Series in all of my vehicles, (including a 2016 Ram 1500 Hemi, 2019 Honda Civic Turbo, and 2021 Mazda 3), except my 2021BMW 330i that requires Amsoil European synthetic. I feel better knowing the best is in those engines. Nothing is better than Amsoil. Checkout the Project Farm videos on Youtube to see for yourself. Amsoil may cost a bit more than some competitors...but my $165,000 group of vehicles is worth it.

Great motor oil

Fantastic oil. I use it in all of my vehicles. I didn’t get any stickers though.

I swear by Amsoil

I've consistently used 5-50 on my GT350 since its first oil change and have been extremely happy with the performance and results.

Amsoil, trusted and quality products

PRICES ARE SKY HIGH AND THEN SHIPPING FEES ON TOP OF THE HIGH PRICES

Quality oil products. Great service

Great product, timely shipping, would definitely buy again.

Love this oil! The engine runs noticeably smoother. Other oils give that "Hemi tick" when they break down and with the one year or 25k mileage on this, that tick has never again been heard! The only oil I will run in my SRT8 6.1, PERIOD!

You can’t go wrong with Amsoil products I’ve been running them in everything I own for 20 years

probably the best engine oil I have ever used. Started putting it in my 2006 Lincoln Mark LT when new and it has 150,000 miles with no issues . My son used this in his Roush Stage 3 Ford f-150 and also no issues as of 80,000. Great Stuff.

Being used in a 09 F150 5.4L since it was new. The engine has 340,000 km & has never had a wrench on it.

I only use Amsoil in my turbocharged vehicles. Not only does it protect my engine but it's super important to protect the turbo end shafts during running and after shutdown. If oil burns on the turbo shafts after shutdown you'll be changing turbos soon.

Purchased a high mileage Chevy with the 5.3 liter V8 equipped with Advanced fuel Management. It had a few valve ticks in valves, but being it was clean truck I would take a chance. I changed the oil and installed the signature series 5W-30 synthetic. Within a few days the ticking stopped. I again changed the oil & filter, and so far the engine is quiet and smooth. The Best Oil I have ever used in 40 years!

Keeping my F150 alive, 230k and still rolling. Oil is the life blood of any engine. Amsoil is by far the BEST!

This pours in just like regular oil !