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AMSOIL Signature Series 5W-50 100% Synthetic Motor Oil

Product code : AMRQT-EA

5 star rating Read 6,863 reviews

Customer Rating

5

90% would recommend

  • 5 6679
  • 4 130
  • 3 24
  • 2 9
  • 1 21

AMSOIL Signature Series 5W-50 100% Synthetic Motor Oil

5 star rating Based on 6,863 reviews
  • 5 star rating
    The Best Synthetic Oil.
    By  MARIUS,  a  Verified Buyer  from  Tujunga, CA.  on  March 30, 2025
    The Best engine oil I have ever used, I use it on all my vehicles. Highly recommend! MORE Frequent Synthetic Oil Coupons and/or Free Shipping would be Awesome and Appreciated 😊.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Fantastic Product from Amsoil
    By  CKW,  a  Verified Buyer  from  Colorado  on  March 29, 2025
    Works well with a turbo charged engine, provides cooling and protection one would expect and need in the turbo charged engine. We often times drive in the mountains and that is extremely demanding as far as engine temperatures go, this oil is perfect for the demands of mountain driving.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Research points to Amsoil
    By  WILL,  a  Verified Buyer  from  Colorado   on  March 29, 2025
    When I was building my performance engine, I researched the best motor oils to keep my investment lasting a long time. After doing diligent research, reading personal reviews, looking at oil analysis results, and talking to people who use Amsoil, I became a customer and couldn't be any happier and my engine would agree.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    What you expect!
    By  KEVIN,  a  Verified Buyer  from  Keller TX   on  March 29, 2025
    Get a membership, with all the savings, it will pay for itself. So glad I finally committed a few years back. I use their signature label in my boat, a twin turbo car, and a hard working 6.2 Denali.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Delivered to our front porch in 1 day!
    By  WAYNE,  a  Verified Buyer  from  Lloydminster, Alberta  on  March 29, 2025
    After watching countless test videos, customer testimonials and race team results, I made the switch from purple to Amsoil. I ordered an oil change kit for our 2018 Dodge Grand Caravan. It arrived on our porch in 1 day! The van has 95,000 kms on the clock. Gets used for long highway runs because in rural Alberta, nothing is close by! Van lives in a heated garage so cold starts aren't an issue. Short in town runs in the winter are a concern so I wanted the best oil/filter combo out there. Oil change was completed the same day in my home garage as usual. So far, so good. Engine runs strong and quiet as it always has. We'll see what comes in the long run. Next up for the switch is the town car, 2017 Kia Soul EX with 86,000 kms!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Good!
    By  ANDREW,  a  Verified Buyer  on  March 28, 2025
    I ordered it and have already replaced it. Everything is working well
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Just Started in my 2024 Honda Si
    By  JASON,  a  Verified Buyer  from  New York  on  March 28, 2025
    Just started using this product in a new car. I have already seen an increase in the mpg of the car. Best I have gotten is around 49mpg. Hopefully this will keep the engine clean and running good.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Quality synthetic oil
    By  JOSHUA,  a  Verified Buyer  from  Woodbridge   on  March 28, 2025
    Really impressed. Motor running smother. Increased gas mileage. Highly recommend.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    It stops the tickies
    By  RAYMOND,  a  Verified Buyer  from  Sun City  on  March 28, 2025
    I put my car in storage and when I started it up after sitting for 7 month there was no tickies, like with conventional oil.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Good peace of mind
    By  COLLIN,  a  Verified Buyer  from  Maryland   on  March 28, 2025
    Use this in my buddies subaru, even though it'll blow up eventually, it leaves peace of mind that the maintenance has been well taken care of.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Consistent quality
    By  Jack,  a  Verified Buyer  from  Grand Haven, Michigan  on  March 28, 2025
    I've been using Amsoil products for several years and have had excellant results. I recently purchased a new vehicle and have started using their Signature motor oil with excellant results. The engine is more quiet and performance has been great. I know it seems like a waste to most people, but I change oil every 5000-6000 miles, when I do the oil is pitch black and although many people would think that's a bad thing I believe it just proves the oil is doing what it's supposed to do. It's carrying the contaminants and dirt in suspension. Used in conjunction with an Amsoil filter I feel I'm doing the best thing I can for my new vehicle and I expect ma ny years of reliable service from the engine.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Love it. Will continue to use it
    By  CHRISTOPHER pro xp ,  a  Verified Buyer  from  Caulfield Missouri   on  March 28, 2025
    High quality and with stands the heat and abuse my rzr pro xp turbo with 280-300hp can dish out
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Test of time and WIN!!
    By  JOHN,  a  Verified Buyer  from  Michigan   on  March 27, 2025
    2015 Jeep Cherokee Trailhawk. 127,000 miles on the 3.2 L engine. I have never used anything except the Amsoil synthetic motor oil. My vehicle runs like new and performs like new. I intend on keeping this vehicle until it does die. At this point not really sure when that would happen. I’m expecting well over 200,000 miles. I would never even consider using anything except this. I also have a 2006FJR 1300 motorcycle that has also used nothing but Amsoil. I can say the same thing about that motor like new And no intentions of getting rid of it. AMSOIL oil and filters are both used on both vehicles. My wife’s 2015 Cherokee I can say the exact same thing about. Except it only has 89,000 miles. No regrets and never turning back.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    The absolute best
    By  JAKE,  a  Verified Buyer  from  KY  on  March 27, 2025
    The absolute best on the market, in my opinion. Keeps my car running and operating at peak performance. With AMSOIL I don't have to worry about protection for all the vital moving parts of my engine with their top of the line formulations.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Fast Shipping
    By  RICHARD,  a  Verified Buyer  from  Home  on  March 26, 2025
    Very fast shipping and great prices
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Performs
    By  Jz ,  a  Verified Buyer  from  Northeast pa  on  March 26, 2025
    I have put thousands of miles on Amsoil products. Oil analysis has been great from vehicles with 50k to 400k miles. I will always recommend Amsoil for people who want to keep their vehicles.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great product that is the standard
    By  Chris R.,  a  Verified Buyer  from  Indianapolis  on  March 26, 2025
    I have been using this 5w-30 for years in all my vehicles. It seems to pretty much cover every popular make and model. It's been around for years, before the ultra thin high efficiency fluids, that I just don't trust yet. This is the baseline fluid and as always yielded better than factory fuel economy and a noticable reduction in operating temperatures. Not forgetting mention every time that I have used this fluid I've been able to get high mileage with zero failures. This is pretty much a safe universal oil for most vehicles(yes, even though they are pretty much recommending oil with the viscosity of water now). This will keep a healthy and well built motor into the 200k arena with ease.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best Oil on the Market for Jeep
    By  TIMOTHY,  a  Verified Buyer  from  NC  on  March 25, 2025
    Skip OEM Jeep oil and go straight for this. It makes the engine perform and run much smoother than any other oil
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Oils
    By  GRANDPA,  a  Verified Buyer  from  Ohio  on  March 25, 2025
    I've been using SS oil in my cars and lawn equipment, anything that uses oil has Amsoil in it. Started over 20 years ago when some of my fellow workers in the construction industry were telling me their experiences with it. I switched a small truck I was driving to work to Amsoil SS oil at 108,000 miles used the sampling system until about 185,000 miles. At that time engine was cleaner than the beginning sample at 108,000 miles. At 265,000 miles had a valve sucked when son tore down engine to put heads on it the block was like brand new no carbon or sludge. The timing chain was like new also. Got it back together and drove it until it had 375,000 miles. Not because of engine but because other things wearing out. My son, my son in law, and myself use nothing but Amsoil. Also have some friends that use it.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Routine oil change
    By  CHUCK,  a  Verified Buyer  on  March 24, 2025
    Awesome product I use nothing else
    Bottom Line
    Yes, I would recommend this to a friend.
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