What is the best spark plugs for a 250 6 cyl - The 1947 - Present Chevrolet & GMC Truck Message Board Network

rio · 09-26-2008, 11:56 PM

Want are the best spark plugs for a 250 6 cyl? for MPG?

Thanks
Rio

68gmsee · 09-27-2008, 10:11 AM

Ain't none...

Actually, I've tried several brands but it doesn't seem to matter in the mpg department. But, I've had better luck on my 250 with Autolites. For some reason, I've never had good luck with Champions or AC Delcos...

bean · 09-27-2008, 11:42 AM

same thing here. found the autolites work the best. even over the ac plugs. thought about trying the e3's but they're just too expensive

MXmaniac · 09-27-2008, 12:48 PM

I run NGKs in my 292.

rio · 09-28-2008, 11:13 AM

has anyone try the e3's?

rio · 10-05-2008, 02:23 PM

nobody tried e3s?

bad6772 · 10-05-2008, 02:29 PM

I have ran delcos in mine fore the last few years....And i useally change them about every 10,000 miles.....

09-26-2008, 11:56 PM	#1
rio Junior Member Join Date: Sep 2007 Location: Brenham,TX Posts: 571	What is the best spark plugs for a 250 6 cyl Want are the best spark plugs for a 250 6 cyl? for MPG? Thanks Rio __________________ 1970 1/2 ton swb

09-27-2008, 10:11 AM	#2
68gmsee Active Member Join Date: Jul 2007 Location: Centrally located between Houston, Austin and Waco. BCS area. Posts: 7,947	Re: What is the best spark plugs for a 250 6 cyl Ain't none... Actually, I've tried several brands but it doesn't seem to matter in the mpg department. But, I've had better luck on my 250 with Autolites. For some reason, I've never had good luck with Champions or AC Delcos...

09-27-2008, 11:42 AM	#3
bean Registered User Join Date: Jun 2002 Location: Fort Worth, TX Posts: 920	Re: What is the best spark plugs for a 250 6 cyl same thing here. found the autolites work the best. even over the ac plugs. thought about trying the e3's but they're just too expensive

09-27-2008, 12:48 PM	#4
MXmaniac Registered User Join Date: Jan 2007 Location: Denton, Texas Posts: 356	Re: What is the best spark plugs for a 250 6 cyl I run NGKs in my 292. __________________ Andrew '69 C-20(292, 4-speed) Retired Daily Driver '64 C-10(250, 3-speed) Fixerupper '97 F*rd Mustang GT(4.6L, 5-speed) Daily Driver If I only wanted two pedals I'd have bought a bicycle.

09-28-2008, 11:13 AM	#5
rio Junior Member Join Date: Sep 2007 Location: Brenham,TX Posts: 571	Re: What is the best spark plugs for a 250 6 cyl has anyone try the e3's? __________________ 1970 1/2 ton swb

10-05-2008, 02:23 PM	#6
rio Junior Member Join Date: Sep 2007 Location: Brenham,TX Posts: 571	Re: What is the best spark plugs for a 250 6 cyl nobody tried e3s? __________________ 1970 1/2 ton swb

10-05-2008, 02:29 PM	#7
bad6772 Official Site Guitar Shredder Join Date: May 2006 Location: Oz Posts: 3,955	Re: What is the best spark plugs for a 250 6 cyl I have ran delcos in mine fore the last few years....And i useally change them about every 10,000 miles.....



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