Why high grade gas in Force outboards ?

[pecheux]

I read many post with recommandation to use higher test gasoline (89-91) with Force motors only. why Force and not Mercs or Omc ?<br /><br />I have personaly been recommended to use higher grade with any motors due to lowering of quality of most gasoline.<br /><br />Tx

 

[scotty c]

Re: Why high grade gas in Force outboards ?

I always use mid-grade fuel in my outboards<br />because i have no faith in the quality of<br />regular.<br />i have even let mid-grade sit over the winter<br />and the motors still fire up, no problem.

 

[JB]

Re: Why high grade gas in Force outboards ?

There is ZERO advantage to using 89 or higher octane gas in a recreational 2 stroke outboard.<br /><br />Mid "grade" and high "grade" are NOT higher quality fuels than 87 octane unleaded regular. Thery simply allow compression ratios that are not approached in 2 stroke engines. The additives that allow that are definitely NOT good for 2 stroke engines.

 

[roscoe]

Re: Why high grade gas in Force outboards ?

Use the cheap stuff.<br />And use a fuel stabilizer no matter what gas you use.

 

[waterinthefuel]

Re: Why high grade gas in Force outboards ?

JB absolutely hit the nail on the head. "Supreme" isn't supreme quality, it all comes from the same pipe, how would it be better? What, it comes in on a shinier truck? With armorall on the tires?<br /><br />Only additives make it "better", and like JB said they aren't additives friendly to 2 stroke outboards.<br /><br />We did have a valve stick on my go-cart when I was little from using cheap gas. We used premium in it after that and never had a problem. That was a 5hp Briggs though, not an outboard.

 

[WillyBWright]

Re: Why high grade gas in Force outboards ?

Most midgrade and premium gas is made so with ethanol. Oil mixes well with gas, but poorly with alcohol. Especially if water gets in the tank. Considering where one operates a boat, that's just about a certainty.

 

[whofan]

Re: Why high grade gas in Force outboards ?

Ive never had a problem with regular fuel. <br />If your in the time of season where you run your boat often. <br />Use straight gas, if you use your boat for infrequent periods of time. Use seafoam or sabil with the fuel.<br /> Premium fuel works better in a four stroke like that of a car engine.

 

[cobra 3.0]

Re: Why high grade gas in Force outboards ?

I agree to most of the above, however premium fuels are advertised to have added cleaners in them to keep things running smoother(up here in Canada anyway).<br /><br />The same cleanliness can be obtained by adding some carb-injector cleaner at the beginning of the season. I will remove some of the varnish that may have happened over winter.

 

[LubeDude]

Re: Why high grade gas in Force outboards ?

Cheap gas in everything I own with some seafoam in it. Only thing I use high grade is in Mammas HO Turbo PT Cruiser. Its computer shuts the timing down right away and mileage suffers as well as performance.

 

[Bwalker]

Re: Why high grade gas in Force outboards ?

Originally posted by JB:<br /> <br />The additives that allow that are definitely NOT good for 2 stroke engines.

What additives specificly are bad for two strokes? Where did you get this info

 

[KCLOST]

Re: Why high grade gas in Force outboards ?

Roscoe and Lubedude,<br /><br />Where the hell are you guys finding this "cheap" gas you are talking about????