Petrol
- Thread starter fgasca
- Start date
Dave Wilkinson
New member
Fernando,
If the DME has the standard chip there is no reason to use anything better than standard unleaded. There may be some small advantage in using Super (i.e. Shell V-Power or BP Ultimate) in terms of the detergent cleaning but the engine, as standard, is designed to run on regular 95 octane.
If the DME mapping is modified (i.e. after market chip fitted) it is quite usual for such maps to demand 98 octane or better. If you have just bought the car it's unlikely that you would be able to tell if the DME chip has been modified without taking the thing apart to have a look. There is always a chance that a previous owner might include some paperwork but, to be fair, the absence of it doesn't prove a thing.
I would be inclined to experiment - a tankful of 95 followed by a tankful of 98/99 and let your backside tell you if there is any difference!!
Regards
Dave
If the DME has the standard chip there is no reason to use anything better than standard unleaded. There may be some small advantage in using Super (i.e. Shell V-Power or BP Ultimate) in terms of the detergent cleaning but the engine, as standard, is designed to run on regular 95 octane.
If the DME mapping is modified (i.e. after market chip fitted) it is quite usual for such maps to demand 98 octane or better. If you have just bought the car it's unlikely that you would be able to tell if the DME chip has been modified without taking the thing apart to have a look. There is always a chance that a previous owner might include some paperwork but, to be fair, the absence of it doesn't prove a thing.
I would be inclined to experiment - a tankful of 95 followed by a tankful of 98/99 and let your backside tell you if there is any difference!!
Regards
Dave
Steve Brookes
Moderator
You can't stop there! We need more details and more importantly pics!
vitesse
Active member
Post earlier this week featured the Which report ;-no advantage gained from using higher grade petrols,in some cases consumption increased & performance dropped.I use the cheapest petrol 95ron in both Porsches,I can find,generally at the moment Shell.On longer mixed but mainly motorway miles;-924S---32mpg; 964(to Inverness & back) 28.4mpg.No running on,no pinking,no hesitation-no comment
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Steve Brookes
Moderator
Congratulation Fernando, look forward to hearing and seeing more about it []
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davidcross
New member
I have been sucked into believing for the last year that super was the way forward but test have shown in the main their is no difference and remember in troubled times people will go for the cheaper option so the expensive stuff stays hanging about in the under ground tanks for longer
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