Product Reviewed: HP Marine Synthetic 2-Stroke Oil (HPM)
Current Rating: 4.92 out of 5 stars
Votes & Reviews: 59 vote(s) and 58 user reviews.
Reviewed by Kevin: 
Great product. It's nice not getting smoked out when slow trolling
Reviewed by Ronald:
Even thou my old Suzuki 2 stroke does not require this more premium oil. It makes it run much better. The plugs do not foul out and the motor runs faster and smoother! I believe it is from the extra cleaners in this oil. Over the years of using non-synthetic oil the rings and reed valves became sticky and now they are free moving. Worth the extra money.
Reviewed by Jeffrey:
I have been using HP marine oil since I bought my boat five years ago and I have never had a problem with it. I also have noticed less smoke than the product that I was using prior. 👍
Reviewed by Rejean:
2015 nitro boat with mercury 200 2 stroke, less knocking noises with this oil compared to mercury oil
Reviewed by Gary:
In my outboard premixed
Reviewed by Mike:
Switched to amsoil HP marine last year, Really impressed makes my Mercury 200 EFI run much cleaner , considerably less smoking on start up,
Reviewed by Chris:
I've been using this product for a few years now and so far it appears to doing its job with providing max protection for my Merc ProXS.
Reviewed by Giancarlo:
Great product have been using this product for 20 years on all my Recreational vehicles
Reviewed by Robert:
Best product, fast shipping.
Reviewed by Kurtis:
Burns cleaner and my boat starts easier
Reviewed by Bruce:
The best oil on the market
Reviewed by Sammy:
I use it in my Bass Tracker fishing boat.
Reviewed by Joe:
I have had 15 different outboard engines over the years. I started running this oil 3 years ago in a Johnson 75, 1981 model. The cheap oil kept fouling bugs every 90 days due to carbon build up. I switched to the factory synthetic hd50 and plugs lasted 6 months but still smoked a lot. Changed it to amsoil and smoke stopped and so did the carbon. Plugs were now changed at 1 year but didnt need it. Compression numbers stayed the same for three years. Now I have a merc 115 that I'm switching from their factory semi synthetic oil to amsoil.
Reviewed by JT:
I use this particular oil in my boat it runs more efficiently and the oil I use in my vehicle doesn't break down like any other oil I have used . You can definitely go by there intervals on changing it !
Reviewed by Motodan:
I've been using Amsoil products for 35+ years and don't plan on stopping.
Reviewed by Colt45:
I liderally run amsoil in everything I own that has at motor. My mercury optimax has 1300 hours on it and I'm pretty convinced it's because of HP marine.
Reviewed by Lightning Marine:
Description is spot on as described .
Reviewed by Christian:
Beautiful product, no smoke i only use amsoil on all my different machine
Reviewed by IRK:
I have been using this product for several years no issues low smoke low odor spark plugs last longer
Reviewed by Spotted puppy:
The 2 stroke marine oil keeps our 1989 evinrude motor running smooth.
Reviewed by Doug in the boro:
Only thing I run in my boat,have a 2000 Johnson 115 and it runs better with amsoil than anything I've ever used
Reviewed by Ricky:
Use on a 2006 yamaha 225 HPDI motor from new Great product. Need more promo codes for shipping.
Reviewed by littlebuddymicah :
Until I actually saw my brother and another friend using and praising Amsoil did I give it a try.They were surely correct.What a difference.Less smoke ,smoother running.My 40 yr old Merc 20 hp outboard runs great,with less smoke.Best two stroke oils on the market today.
Reviewed by Brad K:
I was in need of two stroke oil for the start of my bass tournament season. After speaking with a buddy who is also a bass fisherman he is also a dealer of Amsoil Products. He convinced me to give it a try. I've burned through two and a half gallons of the HP Two Stroke oil and I couldn't be happier! The smoking has all but disappeared, my prop comes out of the water clean. I'm convinced it's the oil! I'm getting ready to order another case! Thanks Amsoil...
Reviewed by Geet:
Been using this oil in my oil enjected Yamaha outboard for three years now.
Very little smoke on start up and no visable smoke at idle or full throttle.
As long as it performs this good I have no plans of changing oils.
Reviewed by Pete:
Just rebuilt my Yamaha waverunner. I wanted the best 2 stroke oil for break in period and continued protection.. HP Marine by Amsoil is the best, I've used Amsoil for my RC toys, my outboard engines. No smoke, no engine wear, unbelievable mix ratio.
Reviewed by supersyn:
I put this in my evinrude 175 made a total difference in the performance from an idle to wide open I could tell a difference
Reviewed by Dan:
I use it in my Mercury outboard it runs smooth and clean.
Reviewed by Pat:
I had a 200hp mercury efi engine that blew up when rod cap came off. Put a new powerhead on it, ran nothing but Amsoil HP in it. Loaned boat to a friend who trimmed it to high causing the engine to overheat. When it was torn down for repair the hone marks were still on the cylinder walls after 3 years.
Reviewed by roger:
bought a Grady White with dual yamaha 200 HPDI they were 8 years old. I installed an hour meter which reads 2974 hrs and each of those hours wre Amsol 2 cycle Marine oil. NOT one major problem with these engines. Very Very Smoke.
Reviewed by Jc:
My boat starts easier and smokes much less since I switched to amsoil 2 years ago.
Reviewed by Brown sugar:
I been using this oil in my e Tec for 5 year and it works great. It is less expensive and now I use and oil in everything I own. A great product.
Reviewed by Aiden:
I use this in my work boat from April to December on Georgian Bay. I actually gained 3psi of compression when I switched to Amsoil. My boat gets used to haul tools/materials during the day, and for fishing/transport on weekends. Amsoil keeps it running strong.
Reviewed by Motorboat Ricky:
I have been an Amsoil and dealer years ago. Got out of it for financial reasons, and am now back! Always ran 100:1 in my dirtbikes, and have already noticed a significant change for the better in my 1990 Johnson 200 GT outboard. I disabled my BRO, so I run 50:1 permit with mid grade gasoline. The motor starts easier, less smoke, and zero carbon build up on plugs, even with fogging oil on spring start up. The previous owner ran sub-par syn blend and the difference in performance is night and day! Super happy to be back with the oil that started it all, and continues to be the best! Will be putting XL in my HD F150 this month! Thank you Amsoil for the blessing of fantastic oil I can depend on.....
Reviewed by Fish Big Catch Little:
If you run a direct injection two-stroke outboard this is the best oil period. Zero smoke. At 250 hrs
I pulled spark plugs and they were virtually clean. I've ran a lot of different brands of oil the past 45
years and this product tops them all.
Reviewed by Anthony:
I use this for my waverunners
Reviewed by 93outboardmercury:
Used in an outboard 93 mercury 115 outboard motor. Solved stuttering idle, smoking, and hard starts! Not to mention less fear of friction damage over time! Sceptical at first but wow!
Reviewed by Vinny:
I use Amsoil Hd 2 cycle motor oil for my boat, it runs like a top, easy starting , no smoking. I plan on using other products in the future.
Reviewed by Pentar:
I use this in my 85 Skeeter Starfire with a 150 Black Max Mercury that I've eliminated the oil injuction in. I use this as a premix and it works great
Reviewed by John R.:
I have used this product on BRP Seadoo and Yamaha Waverunners with great results and no issues. The oil is clean, runs smooth and no smoke. Great product.
Reviewed by Billy P:
I use both my boats year round here in Florida and have had zero problems with lubrication or carbon buildup since I started using HP Marine back in 2011. I have many friends that I have convinced to try Amsoil and they have noticed easier starting, increased power, and reduced carbon buildup on pistons. We just love the results from this great Oil! Very little smoke and a pleasant smell make this my go to oil for my outboards. I will use nothing else. You should too!
Reviewed by Big Country:
Been using this oil in my Yamaha VMax 250 for 14 yrs
Reviewed by Gerald:
I run this in my 09 250 Yamaha HPDI bass boat. Could not be happier, clean plugs, engine runs flawless, very little smoke, and costs less than Yamalube. I also run in my old 25 hp Mercury tiller steer, runs and trolls at idle speeds great. Formerly ran this oil in my 150 hp Johnson for almost 10 years and had zero issues with the motor and a friend now owns the boat and still running great using same oil. 5 stars and costs same if not less than comparable synthetics.
Reviewed by Jon:
After having used Merc*** Quick****** in my two stroke outboards for many years, I decided to try Amsoil HP two stroke marine oil. One of the first things I noticed while trying this oil was that the smoke from the oil was greatly diminished.
I also noticed that the outboard seemed to run smoothly with less vibration at idle.
I wish I had tried this oil many years ago and I will use this oil for many years to come.
I would recommend this to a friend.
Reviewed by out board:
I use it in my offshore boat with twin motors
Reviewed by Bridgeport Jon:
After having used Merc*** Quick****** in my two stroke outboards for
many years, I decided to try Amsoil HP two stroke marine oil. One of the first things I noticed while trying this oil was that the smoke from the oil was greatly diminished.
I also noticed that the outboard seemed to run smoothly with less vibration at idle.
I wish I had tried this oil many years ago and I will use this oil for many years to come.
Reviewed by Discerning2:
I have a 2007 Yamaha VMAX 150 HP on my saltwater flats boat. I was using the Yamaha Lube, but the Amsoil product is superior. I have less smoking, and less consumption with the he Amsoil. It is noticeable. I have now used this product for a year, so it isn't a new phenomenon.
Reviewed by HITEKBALANCER:
I have been running HP marine in my Evinrude 300 on the lean oil setting for over two years. at least 300 hours of use. My dealer said the spark plugs look cleaner than most and almost did not need replacing after 300 hours. We opted to do so as we were going to put another 300 hours on it before the next service I burn 1/2 tp 3/4 of a gallon each day so XD 100 was adding up. I bought 3 cases of gallons when Amsoil offered free shipping. I was down aroind $30 per gallon where XD100 runs $44 to $48. at the local marina.
Reviewed by JC:
I use this in my 2004 Yamaha 90HP oil injected outboard. I am on my second Gal. with no problems.
Reviewed by Daleyboat:
Excellent product , does exactly as advertised , well done
Reviewed by Larryhyco:
Its the only oil I have used in my last (3) 2 stroke outboards. Best oil on the market.
Reviewed by Dick:
I ran 6 gallons of Amsoil mix at 1/2(4oz)
Normal mix is 8oz per gallon
There were no signs of insufficent lubrication
Motor didn't smoke quite as much. Of course it wouldn't with only 4 oz.
I didn't pay attention to any oil globs coming up from below water line that is present on starting a cold motor
with an 8oz mix. So that is still pending observation. I don't think I would go as low as 2oz/gallon though.
Reviewed by Tommy:
Have used this product in all of my outboard motors for last 12 years without any motor problems to include not fouling any plugs recommend it to anyone who has a boat
Reviewed by Archershaven:
Bought a brand new 90 HP Evinrude Etec outboard motor this year. The Evinrude dealer told me they put AmsOil Hp marine Synthetic 2-stroke oil in the motor. Evinrude will still cover on warranty. The dealer said it's a lot cheaper than buying Evinrude XD100. Works GREAT! No Problems with this oil.
Reviewed by Walleye 1:
As a prior engine builder and worrying about engine failure from worn, rod bearings, piston rings, cylinder wall damage, I learned with Amsoil pure synthetic oil there was NO visible wear after numerous races on the engines. I use nothing but Amsoil in all my gasoline engines.
Reviewed by Paul:
Well I certainly can't complain about the performance of the boat. It is running as smoothly and good as with the original Optimax oil.
Reviewed by Paul:
Today I picked up my oil in Whitehorse and we are very pleased with your service and promptness. Also the price is excellent. Thank you very much for your effort and looking forward to do business with you again.
Canada
United States
I would by this product again for sure !
Perfect for my boat great product !