Yeah, I'd rather use some cheap BOSCH SUPERS or other $2 copper plug than any Autolite.
Sometimes you just have to try a few sets. I have a '97 Jetta which had NGK plugs in it for close to 4 years. I went through two sets of NGK plugs and couldn't get the car to run. I switched to Bosch and it started right up and ran fine.
Since Iridium is tough, and there is platinum at the tip of the movable electrode, I bought Bosch Iridium.
Bosch W7DTC plugs were the best, caint get them no mores, use NGK BP6ET plugs instead.
Bosch F3cs @27psi no issues and no gapping
I pulled the plugs this morning and replaced them with Bosch cooper plugs, the only match that was available in local Autozone. There are no more misfires (for now), which makes plugs the culprit.
Currently Running Bosch - Fusions - for Spark those seem to have Smoothed the Motor - 1 step Cooler .
Bosch FR8DC+ perform well and you won't have to worry about seized plugs. You might have to change them sooner.
this summer I switched from oem to platinum bosch plugs and just recently took to dealer and had plugs changed as they said the platinum plugs in fsi engine will cause some fuel to not burn properly.
After too many bad experiences/unhappy motors I wouldn't put bosch plugs in a lawn mower.
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