AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil
ALMQT (ALMQT-CA)
Quart Bottle
Case of 12
AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil
ALM1G (ALM1G-EA)
Gallon Jug
Each
AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil
ALM1G (ALM1G-CA)
Gallon Jug
Case of 4
AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil
ALM55 (ALM55-EA)
55 Gallon Drum
Each
AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil
ALM27 (ALM27-EA)
275 Gallon Tote
Each
AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil
AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil
5 star rating
Based on 5,589 reviews
5 star rating
Excellent Product
By 
DARREN, 
a 
Verified Buyer 
on 
November 06, 2024
Used on all 3 of my wife’s current/previous cars. All have been Ecoboosts that she would put on average 25k/year on in South MS heat. Last two cars made it 100-150k without any issues and always a clean engine and valvetrain with this oil at every 5k interval. Current 2023 2.0 bronco sport has 38k, quite valvetrain and smooth running as always.
The price is good and the quality and shipping is great. Using on a 2005 gmc Yukon Denali with 208000 miles. So far everything is working good. Drove about 3000 miles with the new oil.
I like how they have the proof behind all of their products and that to a consumer adds trust and value knowing that it truly is protecting their engine in their vehicle
This is a great oil. I am still working out the needed viscosity for my build. This was the recommendation from the Amsoil Tech department and is a great choice! I will be testing the 5W-50 soon and may go with that one for the more oil pressure registering on the gauge.
I was happy to see that my order was shipped quickly ad arrived earlier that promised. The order was complete and came with a useful pair of gloves and a disposable funnel. The oil should be as reliable as advertised and my only doubts are about the filters. The oil filters looked like cheap knock offs to be honest.
Had oil and filter changed from Ford Synthetic to AMSOIL. Engine ran smoother by the time I got home (3/4 mi). Went to event 2hrs away next morning. Round trip (4 hrs) saw 2mpg improvement. Phase 1, crankcase, is done. Phase 2: transmission, transfer case, and differentials next. Lastly: coolant, power steering and brake fluids.
Ok, long term review, one of my vehicles is a 2007 Tahoe (5.3L), I started using the Signature Series about 100,000 miles ago after the vehicle already had 150,000 miles on it. Upon the first change I noticed a difference in oil pressure, the dreaded GM cylinder shut off system and lasting longer between changes. It's still running well after 260,000 miles and I have hope for many more miles. I only wish I had started sooner with this product.
It’s a great kit. The 1 gallon containers are great compared to the competitors 5quart. Everything you need with one click. I just started using AMSOIL in my truck this year after using Mobile1 for years. It’s a bit pricey but it’s piece of mind knowing your using the industry best in your engines. I’ve also started using it in Briggs&Stratton home standby generators as the air cooled models can run very hot.
I switched to amsoil after I spun a rod bearing. Right off the bat I noticed lowed oil temps when driving around using the same weight as the past stuff. The car idles smoother than before.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Best products ever
By 
STEVEN, 
a 
Verified Buyer 
on 
October 29, 2024
Been using amsoil for many years. Far superior to anything else on the market.
Signature motor oils will help your engine run cooler and last longer.
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