> I've used mid-grade gas (Canada 91 octane?) since I bought this car
> (only 90,000 km) new. With the price of gas skyrocketing I'd like to
[quoted text clipped - 4 lines]
> I know I'd have to watch out for pre-ignition etc. but I'm really
> interested in the damage aspect.
Yes it has electronic anti-knock. You can switch grades and it will
adjust timing to avoid damage. You can run a google groups search on
this ng with the term 'knock sensor' and you'll get a pile of relevant info.
Dave
> I've used mid-grade gas (Canada 91 octane?) since I bought this car
> (only 90,000 km) new. With the price of gas skyrocketing I'd like to
[quoted text clipped - 4 lines]
> I know I'd have to watch out for pre-ignition etc. but I'm really
> interested in the damage aspect.
Yes, but what you lose in MPG may make it a false economy.
Steve T - 07 Aug 2005 21:08 GMT
>> I've used mid-grade gas (Canada 91 octane?) since I bought this car
>> (only 90,000 km) new. With the price of gas skyrocketing I'd like to
[quoted text clipped - 6 lines]
>
> Yes, but what you lose in MPG may make it a false economy.
And do a search, this has been answered several times in the last week.

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Steve
http://www.atlantaracing.com
jmattis@attglobal.net - 08 Aug 2005 00:29 GMT
> Yes, but what you lose in MPG may make it a false economy.
Put in a tankful. If you don't notice any performance difference, your
knock sensor is already shot and you weren't getting any benefit from
premium. At the age of your car, it may just fall into that category.
If it turns into a dog (like 0-60 mph in 10 or 11 seconds), then you be
the judge as to whether it is worth premium.