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Author
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Topic: plugs
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Toivo
Journeyman Posts: 1
From: Brainerd
Registered: Oct 2001
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posted 10-10-2001 12:05 PM
   
my replacement used 5.0 engine (used)came with a new looking set of Bosch plugs, the multifire type(4 tips. I have been working toward better mileage and am wondering if these are the best plugs for this engine. I have a brand new set of NGK plugs on the shelf and wonder if they would be better performers. The enging runs fine but is not the greatest on mpg. A new O2 sensor gives me 14 mpg up from 10 or so before replacement. Toivo
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SteveLaRiviere
Administrator Posts: 32655
From: Saco, Maine
Registered: May 99
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posted 10-10-2001 08:04 PM
Welcome to M&M. Try them both, they are easy to change.  I'm a Autolite man, myself. ------------------
'70 Mustang Mach 1 M code 351C 4V/FMX/3.25 open
'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
'97 Probe GTS 2.5L DOHC Be American, Drive American!
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Bob Hopkins
Gearhead Posts: 220
From: BRIDGEPORT NJ USA
Registered: Jan 2001
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posted 10-12-2001 03:34 PM
I'm an old f**t but I never have beleved in multible tip plugs spark is going to jump from only the closest one,and only that one.Unless you can change the laws of phyisics,Piston engine Aircraft run pultiole groungd plugs ,but thats because of goverment reg's for backup systems required on aircraft,you cant park them on side of cloud and fix them I'mFAA ceritified.
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SteveLaRiviere
Administrator Posts: 32655
From: Saco, Maine
Registered: May 99
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posted 10-12-2001 03:51 PM
quote:
Originally posted by Bob Hopkins:
I'm FAA certified.
Very cool! You are among the elite of mechanics.
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