What grade fuel to use?

[Damo]

Quick question, since these are Ja.panese engines run in Ja.pan (coming from a half-cut obviously), what type of fuel is the best to use for these engines?

What is our fuel like compared to theirs? Any ideas?


Damo

 

[Lexurious]

premium all the way!

 

[racingbrett]

japanese engines normally like the higher octane stuff...

for anyone needing higher octanes to aid there tuned motors (usefull for the occasional high boost run down a strip) heres something i found from talking to a fuels chemist not sure how legal all of this is but hey.

***edit***

also i cannot gurantee this will not damage your engine i have used the 115 octane mix on my own cars without any damage, the cars in question were without exhaust gas readers one is a high cr race motor the other a 300hp 1.4 ltr turbo motor both recieving regular inspection,setup and rebuild

***edit****

"Ok, the best thing you can do is to locate some brush thinners. Paint thinners (Cellulose) = mixture of methylbenzene and di-methybenzene. The good news for you is that Brush Thinners is the cheap discoloured crap only good for cleaning paintbrushes. I am aware that using a 25% mix of this with regular fuel is relative to 115 Octane RON. You can buy big drums of it if you can find it. Ask a painter (it's similar/cheaper ££ wise to petrol). Alternatively, get an aldrich chemicals catalogue and buy some tetraethyl lead and ethyl dibromide. Mix about 1:4 and use a 4% mix with normal unleaded. That is pretty much avgas. Toluene (Methyl Benzene) is good stuff. You can buy it in bulk, it works a bit better than brush thinners but is pricey"

 

[krayn]

Does any of this stuff contain lead or any other products that may contaminate the oxy sensor in the exhaust pipe?