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Old 07-28-2003, 03:23   #1 (permalink)
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Join Date: May 2003
Location: Adelaide
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PULP engine idle miss

I decided to try some Mobil synergy in my EB. My local servo said they have Synergy 8000 even tho the pump was just labelled "premium Unleaded". Today, with an intermitent engine miss at idle I called them to say was that really 8000? The boss finally said no, 95 RON. I have since added 20 litres of real 8000 from a different servo. As I changed the plugs yesterday too, I am puzzled about the periodic miss only at idle. Could it be just some bad fuel? Could it be the plugs? Or is it just the car getting used to a higher RON?

rev@IRC. EB 3.9 auto. VDO head unit, Focal and Sony speakers, tinted, mags, pacemakers, hi-flow cat, 2.5 inch exhaust, K&N, slotted.
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Old 07-28-2003, 03:27   #2 (permalink)
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Join Date: Oct 2002
Location: VIC, Narre Warren
Age: 32
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did u fill up when the truck was filling the underground tanks? all the crap down the bottom can get stirred up at that time...
1976 351c td cortina
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Old 07-28-2003, 03:36   #3 (permalink)
i pity tha fool
Join Date: Jul 2002
Location: Gosnells, Perth
Age: 32
Posts: 1,040
Re: PULP engine idle miss

^ in my experience that would generally get water and muck in the fuel filter resulting in dying engine.. not so much a miss.

i'd go bad fuel.. go for a long drive and empty the tank, then fill up at a different brand and see how you go.
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Previous ride: EBII V8 Manual Ghia spring roll.
Current ride: 1970 ZC 351 Fairlane Custom.. (estimated 350ftlb @ 2000rpm.. max torque 420ftlb at 4500rpm.. with standard exhaust manifold!)
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