Quote:
Originally Posted by 940volvoman
I have just completed a long journey with a loaded 940 Celebration using the new fuel (E10)
Pulling was quite poor on certain parts of the journey, but was surprised to read that Bosch leads (which I have) are really poor quality compared to some others. Is it worth going to larger,less restrictive spark plug leads?
Its probably time for some new plugs, too...?
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Get some Bougicord leads and switch to E5 fuel (super unleaded) permanently. Much of the so-called 95RON (E10) fuel really isn't now, the ethanol is an octane booster so i'd guess it's probably only about 88-90RON so won't have the calorific value it previously had and will be more prone to detonation/pre-ignition/pinking which the ECU will detect and counter by retarding the ignition timing, making it slower and thirstier.