ngk TR-6's and fuel economy

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Apr 18, 2007 | 11:54 AM

2002z28

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ngk TR-6's and fuel economy

I checked my fuel economy last weekend. I was driving about 77mph with the cruise control on. Six Speed with stock 3:42 gears.
I managed a terrible 23.5mpg.
Is it the cold plugs? They are gapped @ .035"
thanks,

Apr 18, 2007 | 12:51 PM

Todd157k

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I didn't have any mpg difference with them. Not more, not less.

Apr 18, 2007 | 01:24 PM

Danger731

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Wonder If It Drops Power N/a

Apr 18, 2007 | 02:10 PM

Z284U2TRY

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26mpg highway m6 342's

Apr 18, 2007 | 03:35 PM

2002z28

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i was getting around 28mpg a couple of years ago. this is the first time i have checked it with the colder plugs.

Apr 19, 2007 | 12:32 AM

LS1RedZ

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Quote:

Originally Posted by Danger731

Wonder If It Drops Power N/a

I have been told that with colder plugs there will be a drop of about 10hp.

Apr 19, 2007 | 09:18 AM

oange ss

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Quote:

Originally Posted by LS1RedZ

I have been told that with colder plugs there will be a drop of about 10hp.

might be a small loss on a bone stock motor, but it wont be 10 hp

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Apr 19, 2007 | 01:45 PM

Hennytime

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From: winter springs, fl

maybe 3-5 flywheels horsepower

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ngk TR-6's and fuel economy

ngk TR-6's and fuel economy

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