Excellent quality oil. AMSOIL the best. Engine working smooth,quiet.

Allways quick delivery and as good as it gets for quality products!

Use this oil in both of my old Hot Rods.

Was recommended amsoil for my Hayabusa's sticking clutch (after winter storage) & so far, so good. I haven't stored the bike yet w/oil but transitions seem smoother! Little pricey tho

Just put it in my Silverado. We’ll see how it performs.

Great engine oil, highly recommended and will buy again for my surface drive engine.

Great high zinc oil for my jeep. Runs quieter and better for my engine.

Been using this for many years in older air cooled flat tappet Porsche engines. Does well on the track and retains good test sample numbers for surprisingly long drain intervals.

Never have a problem receiving my order. The best oil I have ever used. It is All my Vehicles from the 401 Ford 5-40 diesel to the 10-40 400 ford and my LTD 460. I use the 5-30 in my 5.4 Expedition. In my Hondas 10-40 and Harleys,v twin 20-50 they run much cooler which to me means Much less friction. My V twin cam went from 38 mpg to over 45 and at times 50 mpg. That is unheard of on a Electraglide ultra 96 CID twin cam. But, that is what it got on a road trip. Yes, much less friction.

I would use their filter if they made a two qt for a Chevy V8 8.1 L in my RV (NAPA Gold 1794)

So far things are running great, this is the first time using the oil, definitely won't be the last!

I have been using this product in the 5.7 Liter Engine of my 2002 Crownline 225 boat for well over a decade. The boat stays on a lift so always exposed to a high moisture environment. I take pride in how great my 20 year old boat looks. With Amsoil, it runs as good as it looks!

This oil by far is the best oil for a performance standpoint.

I've used Amsoil products 1998 and never had a failure due an Amsoil product. Owned gas and diesel engines, motorcycles, Motor Homes, generators, trucks and passenger vehicles and always had confidence in Amsoil.

Excellent quality motor oil.

Best for older vehicles!

What can I say useing this in my hustler trim star with Kawasaki engine Mower is running great and smoother

Very happy with the oil. I use it in my 1991 Corvette Zr-1. I appreciate the extra engine protection features.

This has been used in a gasoline powered tractor with a bypass oil filtration system. High zinc synthetic oil (needed by older engines) that has resulted in a cooler, and better, running engine in very heavy bush hog use. Highly recommend despite the price.

I'm using this oil in my motorcycle and haven't had any troubles.