What fuel?

**SMOKEU** · 11th October 2010, 20:33

What octane fuel do you guys use in your 250s?

**Buckets4Me** · 11th October 2010, 20:44

Originally Posted by SMOKEU

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What octane fuel do you guys use in your 250s?

91 for my 1990 zxr250

**psycho22** · 11th October 2010, 21:18

I always used 95 or 98 in my old Hyo and SR250

**qwertydog** · 11th October 2010, 22:23

Same as the year of me bike (manufacturers specs

)

**Gibbo89** · 12th October 2010, 00:25

always 95 or 98. what do you use smoke?

**EJK** · 12th October 2010, 00:29

I put diesel.

**davebullet** · 12th October 2010, 06:16

91 in the VTR250 (all it requires according to the manual). Runs fine and we get 30km/litre.

**Lurch** · 12th October 2010, 07:02

It's hard to find concensus on this but I doubt that many stock 250's would run better on 95/98 than they do on 91. Higher octane fuels do not automatically give an engine more power, they actually just burn longer and later in the compression cycle which may not suit many smaller capacity engines.

Also higher octane fuels tend to include more additives and cleaners which most of the time you are better off without and especially if your engine isn't completely combusting the fuel due to it not being tuned for it.

Partial reference:
http://homepages.slingshot.co.nz/~sh...ml#Question_18