I love the Amsoil boosted. It’s a little cheaper than Signature Series and it has a robust additive package. My engine runs very smooth!

I started using the XL 5W-20 when my daughter bought a used 2009 Kia Sedona which calls for 5W-20. I did an initial Amsoil Flush which produced some evidence of carbon deposits in the filter pleats. I've continued with XL over a number of oil changes. The Amsoil synthetic continues to breakdown carbon deposits, so the cleaning effort continues. By comparison, my own cars, which have been on Amsoil for years, show filter pleats that are significantly cleaner at oil changes - basically just a brownish color change instead pleats with accumulation. It continues to improve!

The products I have used from AMSOIL have been amazingly great for my vehicle. Recommend using any of their products.

Ordered this from Jacob Rodriguez. He assisted us through the entire process of choosing our oil and was very helpful. Will be a reparations customer.

Now I am using this oil. but my car is so old still getting problem.

I would 2005 Subaru Legacy GT with 120,000 miles. This oil is like magic in my motor. Although my seals and exhaust valves were replaced at about 105k miles, due to the nature of turbocharged engines being notorious for heat and burning oil, I was adding at least 3/4 of a quart every 2000 miles before my oil change with Royal Purple. But, with AMS Oil XL Boosted I’m only adding about 1/4 of a quarter at about 2,500 instead, and my oil stays remarkably clean at 3,000 miles.

Bought this as a part of a convenient oil change package from Amsoil. Came with the right amount and seems to be functioning as expected.

Will buy again for sure

I like all the Amsoil products. They protect all my equipment. Use it in my Farm Tractor, ATV, motorcycle, Lawn Tractor, snow blower, chain saws, rototillers, etc.

Really feel the difference, when you add this to your gas!👍😎😲

Great oil been using it for a few years never had an issue with boosted applications. K24 Borgwarner S366 on E85 holds up well with E85 would recommend!

Here is my review. I have been a paying customer for more than 3 years. I own 2 Mazda CX5's and have purchased a lot of oil & filters, and paid for my membership. You used the Covid excuse to delete the required oil filters for this car without any options, forcing me to buy filters on the street while still paying my membership dues. Thanks!

I use this product in a new 2022 Chevrolet Tahoe. Engine seems to run quiet and smooth. With 4K miles on the oil, the oil still looks clean.

This product is awesome

Quality product. Expedition had 418000 when I sold it. Sporttrac has 347000 and going well F150 at 190000 purring.

Great Oil! Run it in my modified Camaro SS. Will never use any other oil!

Great oil

Beat oil I’ve ever used. I’ve put over 200,000 miles on my truck and it’s still running strong with no problems. Would recommend this product to everyone. Plus you don’t have to change oil as much.

Is good for high mileage engines

I have been using the XL synthetic in our Ford F-150 & Explorer since it was introduced and believe it provides great protection as well as no oil leaks after switching from Ford's synthetic blend.