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Please Help With Some Tune Up Questions

Old 08-14-2003, 03:34 AM
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Question Please Help With Some Tune Up Questions

My motors are 1994 merc 7.4L carb big blocks. What are some of the best spark plugs, oil filters,oil.
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Old 08-14-2003, 12:31 PM
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ttt
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Old 08-14-2003, 02:17 PM
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Its all a matter of opinion.

I run NGK plugs, and Mobil 1 syn oil and a Mobil 1 oil filter.
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Old 08-14-2003, 04:58 PM
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i run ngk and valvoline racing oil with delco filters
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Old 08-14-2003, 08:06 PM
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Merc recommends AC MR43T spark plugs and Mercury 25W40 oil. You would safe to use that.
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Old 08-14-2003, 09:33 PM
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I use NGK V-Groove plugs, Valvoline 40w Racing oil and a Wix Racing oil filter.
I do believe your engine came with AC Delco plugs ( MR43T ). Those are good. You can have a parts store cross that number over to your brand of choice or I will do it for you ( I manage an auto parts store ). Send me a PM and I will give you all the part numbers for the parts you need.
Donnie
 
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