Octane

[GOZFST]

Pretty good article on octane ratings.
http://www.thumpertalk.com/wiki/_/oc...ight-r605?pg=1

[safecracker]

Good Article. I normally run 87 in my Spyder. Runs great.

[ARtraveler]

Just me. I use the highest I can get. Here, mostly 90. My $30K machine deserves the very best.

[Chupaca]

good read. Having come from abroad I have always maintained you can run on any fuel here. Back home if you used the wrong one you knew it right away...it would let you know before you left the pump... was embarassing....

[Haze]

Very good article. Well presented.
After reading this info I am going to
consider backing off High Test to the
Medium grade gasoline.

[BLUEKNIGHT911]

Good Article. I normally run 87 in my Spyder. Runs great.

.........To save all of you time ..... just read page #7 of the article...... All my V-twins and now my 1330 have run quite fine on 87 .............. Mike

[jcthorne]

The article says that for engines that do not require the high octane, its a waste to do so.

The Spyders DO REQUIRE 91 or better to run correctly. Lower octane, less than required by BRP does reduce engine power and can cause long term undesirable effects.

The article is not telling you to ignore the manufactures requirements, it just says not to bother going beyond them for most engines.

All Spyders since at least 2013 have REQUIRED 91 octane gas. Its right on the emissions label on your bike.

Also, while BRP has never been known to do so, use of fluids, including gas, that do not meet BRP specs is grounds for denial of warranty coverage. Other manufactures have done so and with BRP's penchant for cost savings, its not beyond them to do so in the future.

Use what your bike requires.

[woodyaa]

You can run lower octane gas in an engine that requires higher octane. But most modern engines have knock sensors that will retard the timing of the motor until it stops knocking. When it retards the timing it reduces horsepower and gas mileage because it's not running at optimum level.


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[ARtraveler]

Jackie Gleason used to say: "And Awaaaaaaaaaaaaaayyyyyyyyy We Go."

We have not had an octane thread for awhile. I will stick with what I said in my earlier post. The few pennies don't matter at the moment. My reasons have been printed many times in previous threads. There is no right or wrong. IMHO of course. I will just sit back an enjoy from here. Good to see some action on the site again.

[Bob Denman]

Here we go...
These engines are equipped with some pretty good anti-knock "Black Magic"...
But if you want them to run right: use what the book says that they need.
Which is:
Series 990 engines: 87
Series 991 engines: 91
The triples also take 91

But since this always starts a pretty good fight: just run whatever the Hell you want, and be happy!

[woodyaa]

I wasn't trying to change any sensitive minds, just stating the facts as they exist in the real world. Use whatever makes you happy [emoji4] I do!


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[Bob Denman]

Wait and see what happens next...

[woodyaa]

Egg them on Bob!


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[Bob Denman]

A loud discussion of octane, is always a good way to start the new year!
Folks can strap on their self-righteousness, and prepare for the oil, tire, helmet, speed limit, and safety gear discussions that follow.

[rustynail51]

usually run 91 octane but have had to purchase gas in some rural areas that only have one pump and was obliged to purchase 87 I couldn't detect any difference in the performance of the roadster I don't believe it makes a big difference.

[ARtraveler]

A loud discussion of octane, is always a good way to start the new year!
Folks can strap on their self-righteousness, and prepare for the oil, tire, helmet, speed limit, and safety gear discussions that follow.

Bring them on. We need more posters Scotty.

[Peter Aawen]

usually run 91 octane but have had to purchase gas in some rural areas that only have one pump and was obliged to purchase 87 I couldn't detect any difference in the performance of the roadster I don't believe it makes a big difference.

On most gasoline powered engines, because you never really completely empty the tank plus a few other 'control' issues & effects, it generally takes more than just one or two 'tanksfull' of gas before the effects of running different octane fuel become measurably obvious to the lay-person.

So running the odd one or two tanks of a different octane rated gas every now & then shouldn't make any difference to your daily ryding, and if you really want to see if there is a measurable difference to your Spyder, you should run at least a few tanks full of the different octane rated gas thru your motor before you start looking/measuring to see if there are any real differences! Which means that for most people, their 'seat of the pants' dyno is extremely unlikely to uncover any REAL differences after just topping up the tank with a different octane rated gas once or twice on a trip somewhere!!

[greybeard]

hate to say this but both my will let me know within a mile down the road if I put in the lower octane usually running on fumes when I fill up

[jcthorne]

A loud discussion of octane, is always a good way to start the new year!
Folks can strap on their self-righteousness, and prepare for the oil, tire, helmet, speed limit, and safety gear discussions that follow.

Ok!

Oil, Rotella T6 in the triples
Tires, Yokohama
Helmet, of course
Speed Limit is a suggestion
All the gear, all the time.

If anyone does not agree with the above, your just wrong. Give up and get on board.

[Buckeye Bleau]

Ok!

Oil, Rotella T6 in the triples
Tires, Yokohama
Helmet, of course
Speed Limit is a suggestion
All the gear, all the time.

If anyone does not agree with the above, your just wrong. Give up and get on board.

The blue bykes must cause an attitude of tyranny, but since I do NOT yet own a 1330, hey I will just agree with Mr. Attitude here!

Joe

[Gsebring]

IMG_0239.jpgIMG_0236.jpg
A direct result of running lower octane than recommended by the manufacturer.
Your looking at a destroyed piston from my jet ski. The screw driver is pointing at a compression ring exposed. All 4 destroyed. Direct result of 87 octane instead of 91.
Lesson learned from experience. Just my 2 cents

[Bob Denman]

Ok!

Oil, Rotella T6 in the triples
Tires, Yokohama
Helmet, of course
Speed Limit is a suggestion
All the gear, all the time.

If anyone does not agree with the above, your just wrong. Give up and get on board.

[jcthorne]

The blue bykes must cause an attitude of tyranny, but since I do NOT yet own a 1330, hey I will just agree with Mr. Attitude here!

Joe

Wife
says I had the problem long before getting a blue bike :-)

[PMK]

IMG_0239.jpgIMG_0236.jpg
A direct result of running lower octane than recommended by the manufacturer.
Your looking at a destroyed piston from my jet ski. The screw driver is pointing at a compression ring exposed. All 4 destroyed. Direct result of 87 octane instead of 91.
Lesson learned from experience. Just my 2 cents

It happens and is real, whether folks here believe it or not, that is up to them. Saving money on cheaper gas may work, but the results can be as shown if the stars don't align. Bummer about the ski. Often destroys the crank too. Pretty expensive fix.

[Bob Denman]

Most of us are riding Spyders that cost more than a lot of cars that are out there...
If we couldn't afford to put the fuel in them, that is suggested by the manufacturer; why did we spend the money?
This is about like putting retreads on a Corvette...

Oh no... did I just start another tire thread?