Correct fuel additive for 2.1 inj petrol

Post by **t25holdsworth** » 02 Oct 2011, 21:48

New to t25 ownership, and as above I have a 2.1 petrol, and I note that only 'super' unleaded is recommended, which is fine if you can get it. sadly it's not sold readily in my area, so I'm having to consider a fuel additive/ octane booster. Can you recommend an additive suitable for this engine ?

I used to use Millers VSP in my previous old motors..

Post by **California Dreamin** » 02 Oct 2011, 23:05

Most get away with retarding the ignition timing from 10 degrees BTDC to 5 DBTDC. Of course you are effectively detuning slightly but nothing you would notice.
Martin

Post by **kevtherev** » 03 Oct 2011, 07:46

I would have to agree with Martin ... much easier and less trouble to do that

Post by **Ian Hulley** » 03 Oct 2011, 09:08

As the guys say 5 degrees BTDC is definately the way to go

Ian

Post by **john1** » 03 Oct 2011, 18:43

Hi Guys

should I do the same with my 2L Aircooled 1981?

Post by **kevtherev** » 03 Oct 2011, 19:10

eh?

your Aircooled does not use 97 ron petrol

the 2.1 in question is the high compression 112 bhp DJ

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Correct fuel additive for 2.1 inj petrol

Correct fuel additive for 2.1 inj petrol

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