I've used both royal purple and ams. As long as you use oem oil filter, you'll get great results. I feel like I got better temps with ams under load but it's not by much.
Pros: better temps with AMS
Cons: not by much
Reviews of AMS engine oil
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15 votes
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5 reviews
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I use AMS, 3 different oils. I find they reduce primary, engine and transmission noise, compared to syn3 in all 3 holes.
Pros: reduce noise
AMS oil with OEM filter after 4k change oil still looks new
Pros: oil still looks new
Mileage: 4000 km
Thats why i use AMS oil. 0w-16. Even higher specs then toyota or nissan( nissan uses a Japanese company)
Pros: higher specs
My yz250 runs phenomenal on ams dominator, but if I can’t get to a place that sells that I run the VP brand 2 stroke oil. It’s a pretty good alternative
Pros: runs phenomenal
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What we know about AMS engine oil
The brand is registered in Ukraine. Official website: https://ams-eu.com.
In March 2026, PartReview does not yet have a formed opinion of AMS engine oil. This part is not in the ranking due to insufficient reviews. You can help by adding a review for AMS engine oil.
Currently there are 5 reviews and 15 votes. Average rating — 4.6 out of 5. Vote balance: 15 up, 0 down.
Users also evaluated the qualities of AMS engine oil:
- Warning light - oil pressure light flicker demands attention - no rating yet
- Engine noise - louder ticking or knocking can mean low or old oil - rated positively. 5 points out of 5.
- Exhaust smoke - blue smoke indicates oil burning that needs checking - no rating yet
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