I use this in my commercial mowers. Hundreds of ours so far. I personally would not go over 100 hours on any oil unless you have a separate oil resuvuir.
All in all, this oil takes a beating and has I think made up the difference in price from cheaper oils.
Been using this for years and have not had any issues
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Small Engine SAE 10-40
By 
REX, 
a 
Verified Buyer 
on 
June 24, 2022
I've been using Amsoil products for years and have not been disappointed with their performance. My JD 318 and now Kubota Z422 use Small Engine Oil. I think this oil has permitted the JD 318 to operate without a mechanical issue, even under some hard use. Since the Kubota is new it should last for years to come.
I have a 1999 Suzuki Carry, 660cc motor in the little fella, we use this all the time. Also use it in the log splitter, pressure washer, ATV, etc etc.
No problems yet. Like that it comes in xxW-40, small engines always run hot, in the hottest of conditions.
I have run this oil for years in all of my commercial mowers. I have multiple with 1000’s of hours and have yet to have an engine failure. They get worked hard and the oil is still clean looking on the majority of them! Great product!
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Great oil, but that's about all Amsoil has to offer
Their oil is really good, but they don't offer anything else for Zero Turn Mowers. No oil filters etc.. I don't know why, it's a big market they are missing out on.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Generator oil
By 
DAVID, 
a 
Verified Buyer 
on 
October 28, 2021
Use in RV 4K Onan generator, best protection you can get, easier to start in cold weather and superior protection in hot weather.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Extra Engine protection
By 
PAUL, 
a 
Verified Buyer 
on 
October 10, 2021
I am a long time Amsoil user. This is my first time using the commercial grade because my local retailer didn't offer it. I use it in all of my yard equipment because of the extra zinc and the added anti-wear protection it offers.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Great for air cooled small engines.
By 
BARRY, 
a 
Verified Buyer 
on 
September 05, 2021
Contains significant zinc to lubricate valves and rockers.
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