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Old Sep 4th, 2022, 18:20   #27
Laird Scooby
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Last Online: Yesterday 23:33
Join Date: May 2012
Location: Lakenheath
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Originally Posted by 940volvoman View Post
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...?
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.
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Dave

Next Door to Top-Gun with a Honda CR-V & S Type Jag Volvo gone but not forgotten........
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