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87 gas

Not sure if this was coincidence or not, but when I bought our 2012 RT S, I used 87, the motor would hunt at idle. I decided WTH, I'd try running a higher grade and put in some 91; after a couple of tanks, the motor no longer hunts at idle...

Maybe it was all the extra super cleaners added to the premium grades that cleaned it out and let it puurrrrrrrrrrrrrrrr. :2thumbs:
 
What does the owners manual say? I'm guessing 87 octane/regular fuel ?

FUEL SYSTEM
Fuel delivery Type Multi-point Electronic Fuel Injection (EFI) with
dual 57 mm throttle body
Fuel pump Type Electrical module in fuel tank
Idle speed 1400 ± 100 RPM (not adjustable)
Type Regular unleaded gasoline
Inside North America 87 (R+M)/2 or higher Fuel
Octane no.
Outside North America 92 RON or higher
Fuel tank capacity 25 L (6.6 U.S. gal.)
 
You should be fine with 87 octane. But if you notice an sort of spark knock, I would switch back. For the people that say that stock engines don't make a difference in power with the octane fuel, you are sort of correct, but not for all vehicles. I have used 87 in my wife's 2 maximas and they both call for premium fuel. The computer compensate for it, and it still performs great. My s/c lightnings wants premium, but I have used 87. In normal driving conditions where you stay out of boost, it would work fine. But when the engine goes into boost, you can tell a difference. I also found out that it will not burn as clean and smudge up the o2 sensors. When going back to premium, it cleared it all up and the check engine light went off. On my 17 mustang GT, it runs with 87, but when 91 and up is used, the car goes into another level. I also have found that it actually learns your driving habits and throttle response adjust accordingly.
 
Interesting ..... I suspect it was Bad Gas and it corrected itself after flushing out the fuel system with fresh gas...... so the actual Octane of that gas was't the fix ...... Mike :thumbup:

Sometimes I get bad gas that results in a flushing out of my fuel system too :roflblack:
 
I love it when a question generates a lot of responses. There is always (well, almost always) good information to be had and that's one of the prime purposes of a forum, in my opinion.
 
been using 87 Oct. since 2009..... NO ILL AFFECTS whatsoever....
i now use 87 with NO Ethanol.... since it's now available in my area....
Dan P
Easley, SC
 
I had been using 92 octane with no ethanol, but have just switched to 87 octane, even though all of our 87 has ethanol, and so far I agree. No ill effects, no change in throttle response, no change in mpg....the only change that I see is the price to fill the tank.
 
I had been using 92 octane with no ethanol, but have just switched to 87 octane, even though all of our 87 has ethanol, and so far I agree. No ill effects, no change in throttle response, no change in mpg....the only change that I see is the price to fill the tank.

annnnnnnnnnnnnnnnnnnnnnnd that is the reason I use it ( always have ) When they designed the Spyder engine .... they decide 99.999% of them would be getting gas ....WITH 10% ethanol ..... because most gas in Canada and the US is sold with ETHYNOL added ..... What does this mean ??? ... the engine system was designed to have it in the gas .... small engines have not been fully up-dated for gas with ethanol YET .... so they tend to work better WITHOUT ethanol ..... jmho ..... Mike :thumbup:
 
I have been reluctant to use any gas but 91, but I will follow the herd and try the 87.... anything to save a buck that won't cost me more down the road!!
 
I've had a 2010, 2012, 2014 and now 2018 Spyders and ran with 87 octane in all of them and NEVER AN ISSUE!
BIG F
 
I love this Can Am fuel injection system. It will digest 87 for four years and 45.000 miles with no ill effects. No knocks, plenty of passing power and 30-40 cents less a gallon. And, my mileage went up from 38-40 to 40-45 mpgs! Whats not to love?
Harleys were ok with 87, but HERR BMW wanted only high test. You could feel the difference.
 
I love this Can Am fuel injection system. It will digest 87 for four years and 45.000 miles with no ill effects. No knocks, plenty of passing power and 30-40 cents less a gallon. And, my mileage went up from 38-40 to 40-45 mpgs! Whats not to love?
Harleys were ok with 87, but HERR BMW wanted only high test. You could feel the difference.

Your comment brings to mind something that I said about ride position on Beemers....Ve have vays of making you ride. Achtung! They seem to be made for all the people with 30" plus inseams. :roflblack:
 
Here in California that is all we have here, have put 87 in mine for over 20,000 miles with no problem.


OK.....Whats damage could happen if I run 87 gas? Has ANYONE EVER had a problem runnin it? This is the 991 engine. I am runnin 89 in it now without any problems. TYIA :)
 
OK.....Whats damage could happen if I run 87 gas? Has ANYONE EVER had a problem runnin it? This is the 991 engine. I am runnin 89 in it now without any problems. TYIA :)

Using a higher octane ( but not AV gas ) than required will not hurt anything. Mechanical .... but your wallet will feel it..... you might lose some power but not like 25% ..... closer to 2% ( if that ) ......Mike :thumbup:
 
As has been said before, gas octane is a personal choice. I have used premium in both my Spyder and Ryker since day one and will continue to.
 
OK.....After 2 tanks.....Still gettin 35 MPG And cant see any difference in performance. Wishin ida went with the 87 all along. Wasted at least 700 bucks in 5 years at 40000 miles.Ignorance is expensive! TY All for the input.
 
OK.....After 2 tanks.....Still gettin 35 MPG And cant see any difference in performance. Wishin ida went with the 87 all along. Wasted at least 700 bucks in 5 years at 40000 miles.Ignorance is expensive! TY All for the input.

But, we don't ride these machines for their gas economy, do we? Welcome to the 87 club. I can say me too, to everything you wrote above. :bowdown:
 
But, we don't ride these machines for their gas economy, do we? Welcome to the 87 club. I can say me too, to everything you wrote above. :bowdown:

I do ( for the gas economy ) .... My Toyt van gets 17-18 and my Cobra 14 if I'm lucky .... Spyder RT ( 1330 ) 38-40 mpg depending how spirited I'm feeling :roflblack:........of course I didn't buy it for that reason, but must admit I like it .... in Vermont the difference between 87 and 91 is .85 per gal... that's not chump change - even if I only get 5+ gal. at a fill-up ...... jmho ..... Mike :thumbup:
 
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