What fuel do you guys use in ur 351cl? - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
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post #1 of 11 (permalink) Old 08-20-05, 10:31 PM Thread Starter
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What fuel do you guys use in ur 351cl?

Just curious.

Also, do you add any lead replacement?

cheers!
Boog.

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post #2 of 11 (permalink) Old 08-20-05, 10:34 PM
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Re: What fuel do you guys use in ur 351cl?

Quote:
Originally Posted by Boog
Just curious.

Also, do you add any lead replacement?

cheers!
Boog.
I used to use Moreys upper cylinder lube, but now just use BP ultimate as the heads are set up for unleaded.
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post #3 of 11 (permalink) Old 08-20-05, 10:41 PM Thread Starter
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Re: What fuel do you guys use in ur 351cl?

what about a stock 351... does a higher octane unleaded eleviate the need for a lead replacement additive?
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post #4 of 11 (permalink) Old 08-20-05, 11:54 PM
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Re: What fuel do you guys use in ur 351cl?

Each time you fill up at the servo for fuel just FART in your tank. Thats enough octane rating for 120.
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post #5 of 11 (permalink) Old 08-21-05, 12:38 AM
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Re: What fuel do you guys use in ur 351cl?

No you'll still need the upper cyl lubricant. It's easier not to bother and just run unleaded. The $ you save can be spent on setting the heads up for unleaded at a later date. Don't run any less than 95ron.

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post #6 of 11 (permalink) Old 08-21-05, 01:20 AM
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Re: What fuel do you guys use in ur 351cl?

BP ultimate for me. Used to use shell optimax but suffered the odd bit of pinging under lower revs with hi load.

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post #7 of 11 (permalink) Old 08-21-05, 02:04 AM
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Re: What fuel do you guys use in ur 351cl?

Mobil Synergy 98 ron, or BP ultimate.

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post #8 of 11 (permalink) Old 08-21-05, 02:45 AM
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Re: What fuel do you guys use in ur 351cl?

Yeh i use BP ultimate98 or avgas if i cant make it to a BP i just use premium unleaded with an octane booster depends on your compression ration really and wether its pinging????
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post #9 of 11 (permalink) Old 08-21-05, 06:46 PM
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Re: What fuel do you guys use in ur 351cl?

Quote:
Originally Posted by Boog
what about a stock 351... does a higher octane unleaded eleviate the need for a lead replacement additive?
No the lead replacement additive is a lubricant. Octane rating (of fuel)determines whether the engine will ping or not. Higher compression engines require higher octane fuel, or a Knock sensor to retard/cut the ignition. (it has a little microphone that picks up the pinging)

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post #10 of 11 (permalink) Old 08-21-05, 09:34 PM
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Re: What fuel do you guys use in ur 351cl?

bp ultimate. now that theres no super everyone should just set up for unleaded

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