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
AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil
5 star rating
Based on 6,897 reviews
5 star rating
Signature Series Synthetic Motor Oil
By 
KEVIN, 
a 
Verified Buyer 
on 
January 26, 2024
I have been using Mobil 1 synthetic oil since 1985 thinking it was the best money could buy. What a huge mistake. I'm sold on Amsoil motor oil and gear lube.
Great oil with rich history in motorsports. Have always used full synthetic mobil products and recent research had me try Amsoil. Decided to stick with it for all of my cars and friends cars I do oil changes on.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
4 star rating
Signature series oil is a great product
By 
ROBERT, 
a 
Verified Buyer 
on 
January 25, 2024
Have been using this oil for 20 years I like only changing oil once a year and have had no issues I keep my cars to around 200k miles then sell them only because the body is rusting out motors are still purring like a kitten
Mon f-150 2014 avait un petit claquement à froid et depuis je lui met de la amsoil il ronne comme un charme! Et moin besoin de faire des changements dhuile souvent ce qui économise du temp et de l’argent!
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Glad I use Amzoil
By 
ELLERY, 
a 
Verified Buyer 
from 
VA Beach VA 
on 
January 22, 2024
I have always had great response to my ordering and the product without question the best you can buy.
I use an Amsoil engine flush and I put the signature for first and after 2000 miles I notice that the engine was extremely quite, amazing. With 180k miles it is running like new.
This has been in my fresh engine since the break-in oil was changed. Love it and I feel it has been the best oil I have used in any engine I have built!
Amsoil is pure liquid gold! High quality product with great communication during the shipping process!
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Signature Series 5W30 synthetic oil
By 
TODD, 
a 
Verified Buyer 
on 
January 18, 2024
I am extremely confident in running Amsoil in my vehicles. it has proven itself over the years and ranks very high on all the independent differing tests for oil. It does what it says it will do!
I love this oil. I've been using it in my 2010 370z, it's a daily and a track car. I was not expecting to feel such a difference when switching from Mobil 1 to this signature series. And my over all oil temperature stays below 200° before it would sit right around 240°
2021 Malibu ran better right afterwards. Idles better, accelerates better, sounds better. I knew with a turbocharger, I had to use the best. Used Valvoline synthetic before switching over. Will never use anything else again..
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
4 star rating
last delivery
By 
JOSEPH, 
a 
Verified Buyer 
on 
January 17, 2024
never received my free tool with order
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Great Products
By 
Wick , 
a 
Verified Buyer 
from 
Elizabeth City NC 
on 
January 17, 2024
Awesome products and was using Royal Purple until introduced to this and I now ask myself “Why Didn’t I Switch Then” but after switching and reading all the information comparison charts and end results I will never use anything else but AMSOIL. Great OILS !!!!!!
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Expensive but worth it
By 
drpete82, 
a 
Verified Buyer 
from 
Kansas City MO. 
on 
January 17, 2024
Had been using Pennzoil Ultra Platinum in my 2020 Tundra but after 4-5k miles on the oil I would start to hear a ticking noise which is common with these engines. I believe it’s the lifters. I switched to Amsoil oil and filter and have close to that mileage on the oil change, but this time no tick. Will continue to use Amsoil.
I use Amsoil filters in conjunction with Amsoil Signature Series 0w-20 motor oil in a Tundra, Sequoia and a Rav4. I have had my oil independently tested at intervals to 10k miles. The tests results convinced me this combo is nothing short of fantastic! Blackstone told me I could exceed 10k miles on an oil change interval......enough said!
This is a carousel of Shop by Equipment slides. Use Tab to navigate through the carousel or the Next and Previous buttons. Use Enter to select a slide.
Thank you for visiting www.amsoil.com. Certain parts of this website may not function with Internet Explorer. To continue shopping with us, please update your browser using one of the options below.