Product Reviewed: AMSOIL OE 5W-20 Synthetic Motor Oil (OEM)
Current Rating: 4.86 out of 5 stars
Votes & Reviews: 79 vote(s) and 223 user reviews.
Reviewed by Paul: 
Does a fantastic job in enabling my vehicles to run at their peak perforance.
Reviewed by Trailhawker:
I always use Amsoil in all my vehicles and generators.
Reviewed by Ramlover:
This OE 5/20 makes my hemi purr. I have to admit that I was surprised that my gas mileage increased by nearly 1 mpg and the engine ran a few degrees cooler at highway speeds. I will never use anything else.
Reviewed by Webby:
I buy all my oil from Amsoil due to the noticable differences in performance. I also use the synthetic bearing grease for the axles on my race trailer and the Amsoil synthetic Dirt series 10-40 for the gear case oil on the race bikes. Amsoil keeps me up and running. Great products! Great product line!
Reviewed by Fred:
I use it in my 2010 Honda Civic. It seems to match the manufacturer recommend service intervals.
Reviewed by Wayne:
I switched over to Amsoil soon after I bought this Saturn. It was originally purchased to be a "toad" behind our RV, but has been used by two of our grandchildren for school and baseball tournament duty which has put about 40K more miles on it. The longer it runs on Amsoil, the quieter it gets.
Reviewed by Mike:
I live by Amsoil I run it in everything I own.
Reviewed by GrndLkNatv:
For the quality, the price, and the ease of shopping, this is what I buy! I buy mostly because of quality, but the rest just makes it even better
Reviewed by Charlie C:
Quality of course. Box was in bad shape. Maybe me but, box material seemed pretty thin. Almost was a problem. Just saying...
Reviewed by Dave:
Provides my 2005 & 2014 Fords great protection.
Reviewed by Jeff281:
I use this product in 2 cars 1 truck and 3 motorcycles. I have found that Amsoil will extend the life of all your automotive and motorcycles and that means alot to me.
Reviewed by Gojoenow:
Put Amsoil after 1 oil change in new vehicle..Runs great 5.7L Hemi in Dodge Durango runs hard in Pony..50k in 1yr -30° in Canada to 101° F on Route66. Vechicle got great fuel economy.. Great oil...👍🐎😀😀
Reviewed by Thor:
Overall this is a great product for a lower price. However the difference in price is worth going up to the XL oil, twice the oil life for only a dollar or so more.
Reviewed by Simon:
I have 3 Fords and they all use Amsoil products. The daily drivers use the OE product and my beloved 1996 modified Mustang runs exclusively on Amsoil's Signature series. Very satisfied.
Reviewed by Cragar:
i've been using this oil for about 2-3 yrs now i've always serviced my own small engine equipment. i've used other oils in the past only to have engines fail repeatedly. always made sure my units had fresh fuel clean filters air and fuel. and always full on oil and change it when needed i still service my
own equipment. I have an 1984 MTD 44" riding mower i've used amsoil in that going on my 3rd season. Oil lasts longer stays cleaner longer. Engine runs smoother and runs cooler. I also consume less fuel than i had in the past with the same mower only changes were clean air filter synthetic oil and
E3 diamond fire spark plugs.
Reviewed by Rich:
Read the reviews and test comparison 's of Amsoil versus other brands of synthetic oil. It appears the Amsoil brand out performed the others in most instances and that is what sold me on their product.
Reviewed by jwa_jwa_jwa:
Bought a ton of 5W20 and put it in my 09 Cherokee Laredo. Smooth driving all the way!
Reviewed by Ghost runner:
I switched from a synthetic blend oil to This OE synthetic. Car runs great, mileage per gallon went up and, now that the temperature has dropped I noticed it seems to start easier.
Reviewed by Luis:
I use it on my ford vehicles. The product and lab reports on it speak for themselves. This is a must product if your vehicle requires it.
Reviewed by Donald:
Fully synthetic oil, sometimes what you get is not fully synthetic from other manufacturers, but is labeled as such due to a rating process which I don't fully understand. Regardless, you get what you pay for here and then some. I use this oil in both of our Jeeps and have full confidence in the warranty Amsoil supplies.
Reviewed by Kendall:
In our new Jeep. Makes cold starting better. Good stuff.
Reviewed by Bob dole:
Definitely get this again for the rest of my cars life runs like new
Canada
United States
I only use amsoil.
I only use amsoil in my Jeep and my chainsaws, lawnmower.