Which Fuel for the D2 bent 8?

Octane rating is all about how much the fuel can be compressed until it goes bang and causes pinging / knocking.... other factors like head design play a large part of it.

So generally the higher the compression rating the higher octane fuel is required.

My old 97 Statesman runs 8.4:1 so std unleaded is all thats needed
My 94 Calibra runs 10.8:1 so is very grumpy with anything but premium

The D2 runs 9.34:1 so is reasonably high (hence the question)

Normally the knock sensor will retard the timing to assist "pinging" but this of course leads to a decrease in power and an increase in fuel consumption

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Originally Posted by Feral

This was to be expected. It means that you enjoyed the slightly extra horses that the premium gave you :D:D:D

Cheeers.
Lyndon.

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nope:wasntme:

Absolutely nothing noticable in performance or fuel economy.... just a few more dollars for each tank full...

You can keep your premium on a Disco II


I've had significant performance differences with other cars... but none on the Disco

Mark

Everyone is right!!!!
The D2 initially had 8.13:1 or thereabouts, so could run on unleaded.
Even the first Thors I think were 8+:1.
however in 2001 or 2002 the spec changed to 9.35 or thereabouts. these require at least 95 octane.
Look on the engine number plate on the LH of the engine between 2and 3 . If 9.35 then you must use 95 or better.
regards Philip A

Just to clarify the ratio (ie 9.35:1) is stamped just above the engine number.

Ladas

damn,,,
8.23.




major bummer.

Quote:

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Everyone is right!!!!
The D2 initially had 8.13:1 or thereabouts, so could run on unleaded.
Even the first Thors I think were 8+:1.
however in 2001 or 2002 the spec changed to 9.35 or thereabouts. these require at least 95 octane.
Look on the engine number plate on the LH of the engine between 2and 3 . If 9.35 then you must use 95 or better.
regards Philip A

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Philip knows his stuff!


http://www.weaselsnout.net/web/pics....ARR-6V6B4F.jpg

Standard for me too

Hey Matt!!
BUB002 is 29 engines after yours!!!

:D:D

Looks like I have to go on paying for premium.

Quote:

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Hey Matt!!
BUB002 is 29 engines after yours!!!

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HAHAHA!

In the engine family scheme of things...that means my LR is your long lost older sister :)