Posted by will721 on June 18, 2022 at 07:33:56 from (172.58.86.128):
In Reply to: Your opinion on plugs posted by 710ltd2002 on June 17, 2022 at 06:19:44:
I have ran all of them. In a variety of engines. Everything from e3s, to bosch, to ngk. In everything from motorcycles, to old pick ups, to garden equipment and yes my old tractor. I also worked in auto parts for a stint.
Starting with champion, absolute junk. I used to run them in my Harley because that was the factory plug, I'd get about a season out of them, sometimes less. Switched to NGK and haven't changed them since. Four or so years strong. I have a 72 plymouth that was long past due for a tune up when I got it. The car doesn't get driven much and I put in champion because thats what it came with. Less than a year, probably less than 5k miles. I put in NGK 3 years ago and haven't had to mess with it since. Threw a set of champions in my Dakota around the same time and they lasted two months. Now has a set of Autolites in it because who wouldn't want lifetime warrantied spark plugs? Have changed cap, rotor, and wires on that truck twice. Same plugs. Even had a set of champions start arking through the porcelain out of a garden tractor out of nowhere one day. I refuse to use them anymore and rip them out of anything I buy.
As for AC delco, I'm not sure who makes them. When I worked in autoparts we found out that several of their plugs were branded NGK coming out of the box. They were literally stamped on one side with a delco number then a ngk number on the other. That said, never been a gm guy but never had a problem in the few GMs I put them in over the years.
Autolites are good. Ive put them in alot of stuff before I switched to NGK. Still have a set in one of my pickups though. A buddy of mine pulled a set out of his old ford pickup ine day cause it was missing. Those plugs had no center electrode left. It was just a hole in the porcelain, on every plug. All but 1 still somehow firedLord knows how many miles were on them.
Bosch are good, just stay away from the gimmicky ones.
E3s belong at the bottom of the ocean next to the titanic, I'm not convinced they aren't champion made. Had a set in a Ford last 2 months, had a set in a Harley not last a season, and a buddy of mine put them in his 87 Ramcharger for whatever reason, two blocks.
Ngk I switched to because a larger variety are stocked locally. More availability on small engine plugs. I was also recommended them by a few friends into drag racing, and even the local harley dealer. I have never had one fail or foul. Infact I've only ever replaced on set on a 74 charger, but thats because we flouled the hell out of them trying to get it to start for the first time in 30 years.
Motorcraft is about the only brand I've never ran. Mostly because I don't own Fords anymore, but when I did they were never in stock and the local parts store when I needed them.
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