Amsoil vs. Quicksilver DFI

[Meat-Run]

Purchased a gallon of Amsoil HP to see if it makes any difference to my older '92 Mariner, been using Quicksilver DFI since eternity. My motor has been running find but still a little sluggish in mid-range rpms and was wondering by changing oil this might help. This past winter I switched to Amsoil for my snowmobile and noticed a big difference in smoke and performance do you think by changing oil it could harm my motor? Any thoughts or advice would be welcome.

MR

[BoxMN]

No, won't hurt it. Not sure you will see any performance increase though.

I am also in the "switching to Amsoil" in my sleds process. Only used it in one sled so far, waiting for the others to get lower in reservoirs before I swap.

[Meat-Run]

I too am waiting for oil reserve to drop on outboard before I replace it with Amsoil. Not expecting to increase performance on boat but I want cleaner spark plugs AND compared to the Polaris factory oil that I was putting into my sled it was a big difference. My ultimate goal is to have a smoother running motor and less oil build up on plugs.

thanks Box for your .02

-MR

[Northlander]

I run amsoil in everything and have had no issues with it.

[Eric Wettschreck]

I ran Amsoil in my 70 HP Johnson outboard. Mixed everything per Amsoil's recommendations. Middle cylinder melted. No support from Amsoil.

I ran Amsoil in my Strikemaster mag 2000 auger. Mixed everything per Amsoil's recommendations. Motor melted, no support from Amsoil.

My good friend ran Amsoil in his 30 HP Johnson. Mixed it per Amsoil's recommendations. Motor melted.

The next time I see a quart of the krap I'm using it to start a bon-fire cuz that's pretty much all it's good for.

[delcecchi]

I am curious why it looks like, on the amsoil web page, that their two cycle oil is not TCW3 certified. Any thoughts? Which of the specs is non-compliant.

Not a personal issue since I now have a 4 stroke. Just wondering.

[20lbSloughShark]

I ran Amsoil in my 70 HP Johnson outboard. Mixed everything per Amsoil's recommendations. Middle cylinder melted. No support from Amsoil.

I ran Amsoil in my Strikemaster mag 2000 auger. Mixed everything per Amsoil's recommendations. Motor melted, no support from Amsoil.

My good friend ran Amsoil in his 30 HP Johnson. Mixed it per Amsoil's recommendations. Motor melted.

The next time I see a quart of the krap I'm using it to start a bon-fire cuz that's pretty much all it's good for.

Oil lubricates, it doesn't cool the motor, so it is not the cause.

On a side note, I hear lots of people talking about running amsoil at 100:1, and it simply can't. It is the top of the line, but it still needs enough oil to coat the cylinder/crank, etc. no if, and's, or buts. If your motor says 50:1, that's how much it takes to lubricate your motor. Run amsoil at your recommended amount, and you will be happy.

[paceman]

I have been running amsoil for a few years now in my boat motor, auger, chainsaw, weed wacker... Love it. all my engines start better, run smoother and have way less smoke!

[PerchJerker]

The next time I see a quart of the krap I'm using it to start a bon-fire cuz that's pretty much all it's good for.

Same for me.

Amsoil is great stuff until you have a problem with it. I no longer use it and haven't had a problem since I switched away.

#notabeliever

[20lbSloughShark]

What problems could you possibly have had? Oil is only packaged in a few locations. Your getting the same oil with different additives.

[delcecchi]

What problems could you possibly have had? Oil is only packaged in a few locations. Your getting the same oil with different additives.

Near as I can ascertain from their web site, AMSoil is not TCW3 certified. I don't know why. Outboard manufacturers all require the use of TCW3 oil in their 2 stroke engines. Why would anyone use an oil not certified for TCW3 in their valuable outboard motor? I don't get it.

[20lbSloughShark]

It is TCW3 oil (meant for 2T water cooled motors), but it is not certified. The reasoning I got when I emailed Amsoil a while ago was that the process was expensive, and they felt customers would know that even without the certification it was still a great product. The only thing I see wrong with Amsoil, is they advertise 100:1 on some marine 2 stroke oils. This is fine for some motors, but the fact is every motor is different. If your motor says 50:1, that's what It needs. I don't run amsoil in my outboard simply because its too expensive. I use interceptor in my dirtbike, and it is great stuff. I replaced my top end in the spring (it had about 200 hours on it) and neither the piston or cylinder had a mark (which is normal). If you don't want to pay $10, I run Penzoil Full-Synthetic Marine which is $25 a gallon.

BTW Amsoil will not void a motors warranty if it is used per the motors specs.

[delcecchi]

It is TCW3 oil (meant for 2T water cooled motors), but it is not certified. The reasoning I got when I emailed Amsoil a while ago was that the process was expensive, and they felt customers would know that even without the certification it was still a great product. The only thing I see wrong with Amsoil, is they advertise 100:1 on some marine 2 stroke oils. This is fine for some motors, but the fact is every motor is different. If your motor says 50:1, that's what It needs. I don't run amsoil in my outboard simply because its too expensive. I use interceptor in my dirtbike, and it is great stuff. I replaced my top end in the spring (it had about 200 hours on it) and neither the piston or cylinder had a mark (which is normal). If you don't want to pay $10, I run Penzoil Full-Synthetic Marine which is $25 a gallon.

BTW Amsoil will not void a motors warranty if it is used per the motors specs.

I call talk on the "certification is too expensive" and the "will not void mfg warranty". If there is a problem and you didn't use certified oil, all bets are off. Every other mfg of outboard oil manages to scratch up enough money for the certification testing. And if they didn't do the testing, how do they know it would pass?

It may be great stuff and work terrific, but if they can't get it certified it wouldn't go in my motor.

[20lbSloughShark]

Fair enough, I just have to argue when someone comes on and talks about how their motors were ruined by a certain type of oil. I'm especially careful with my outboard, but every other motor I use, I just put in any oil of the right type. I've ran my ice auger on so many kinds of oil I know they all work (a lot of times I mix 3 or 4 "leftovers" together to mix with a gallon of gas). Heck the only problem I've seen wasn't to me. My sister ran a 2T lawn mower on straight gas for a year (bought used) until it just wouldn't start. 2 strokes very rarely just quit, they continually get harder to start until they need more than just the choke. Even seized 2 strokes are repairable. 4 strokes of any kind... not a chance.

[delcecchi]

Interesting. The filter automatically changes the two letter abbreviation for bovine excrement to "talk".

Yes, there are reportedly many different causes for two strokes dying. Hard to tell what was the root cause of a particular one. Sometimes stuff is just a coincidence.

[slammer]

Many of Johnson outboards melted down no matter what oil they had. I ran a 60hp with Johnson oil and it still puked. It was a poor design and there is a reason you no longer see them. Bombardier scrapped everything and started fresh.