Gas Grade? - Suzuki GSX-R Motorcycle Forums Gixxer.com
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post #1 of 10 (permalink) Old 08-07-2019, 02:06 PM Thread Starter
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Gas Grade?

I got a 2013 GSX R 1000, the manual recommends Gas grade of 90 or above, does that really make a difference? I have been ignorantly using 87 for 700 miles since i brought it.
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post #2 of 10 (permalink) Old 08-07-2019, 02:27 PM
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Re: Gas Grade?

Really, a duplicate post of the same question? Please try using the forums search function. There are a few topics on fuel/gas grade.
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post #3 of 10 (permalink) Old 08-07-2019, 04:24 PM Thread Starter
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Re: Gas Grade?

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Originally Posted by Meeps View Post
Really, a duplicate post of the same question? Please try using the forums search function. There are a few topics on fuel/gas grade.
I did look up but those questions are not directly relevant to the question on 2013 1000 cc make & model or similar. Most of them are about older models and different make.
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post #4 of 10 (permalink) Old 08-07-2019, 07:38 PM
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Re: Gas Grade?

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Originally Posted by USEDGSXR2013 View Post
I did look up but those questions are not directly relevant to the question on 2013 1000 cc make & model or similar. Most of them are about older models and different make.
It actually still is relevant as fuel grades do not change. You should be using what your manual specifies. There is a reason that they specify certain fuel grades.
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post #5 of 10 (permalink) Old 08-07-2019, 10:12 PM
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Re: Gas Grade?

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Originally Posted by USEDGSXR2013 View Post
I got a 2013 GSX R 1000, the manual recommends Gas grade of 90 or above, does that really make a difference? I have been ignorantly using 87 for 700 miles since i brought it.
Yes, it does. Unless you like pre-ignition and detonation that can cause catastrophic engine failure.
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post #6 of 10 (permalink) Old 08-08-2019, 12:47 PM
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Re: Gas Grade?

I think that there originally was a sticker on the tank about the octane requirements. They commonly get removed. Suzuki isn't doing that for the fun of it as it creates a hardship of sorts for owners. At idle and low load 87 will be OK. But at higher load and RPM you're playing with fire. It could easily lead to engine damage.
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post #7 of 10 (permalink) Old 08-08-2019, 05:16 PM
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Re: Gas Grade?

Don't be cheap!! Be safe and go with Super unleaded. There is detonation that you don't hear. You don't want to play russian roulette over a $1 more a gallon.
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post #8 of 10 (permalink) Old 08-08-2019, 06:46 PM
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Re: Gas Grade?

At 12.9:1 compression and aggressive timing you should be running at least 91. It clearly states that in the manual/this forum/google/just about everywhere. Pretty elementary question. These are performance machines, not Honda Accords. Stop running 87, it'll pit the crown of the piston, jack up the rings, and puts a lot of stress on the rod bearings and piston skirt.
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post #9 of 10 (permalink) Old 08-10-2019, 07:29 AM
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Re: Gas Grade?

Hey, does anyone finds that your bike runs better on one brand over another. Sorry, don't mean to thread hike but always wondered about this as my truck always seem to run better on BP and that is pretty much what I put in my bikes.

I know, I know, it is common knowledge that the brands don't make a diff but just asking the collective at this time. Thanks.
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post #10 of 10 (permalink) Old 08-11-2019, 01:39 PM
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Re: Gas Grade?

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Originally Posted by Revster View Post
Hey, does anyone finds that your bike runs better on one brand over another. Sorry, don't mean to thread hike but always wondered about this as my truck always seem to run better on BP and that is pretty much what I put in my bikes.

I know, I know, it is common knowledge that the brands don't make a diff but just asking the collective at this time. Thanks.
I've actually noticed this with my K7 600... I get far better fuel mileage using WaWa fuel here in Florida than I do the others... My next go to is fuel from 7-Eleven (Corporate stores, not the franchises as the franchises can run with what ever fuel partner they want). I also always use super or premium in my bike. But with WaWa fuel I've noticed a good 5 extra miles to the gallon plus it running smoother.
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