Want to change the plugs on my 1990 F150 with a 5.0 engine. Looks like XP25 plugs. Can I also use autolite AP25 copper plugs? I use autolite copper plugs in my supercharged engines, they are the best choice in those engines. And at about $1.50 each, it makes a plug change less costly.

 

Yes, standard plugs work well, I personally use reg motorcraft plugs, no need to use fancy expensive triple quadruple platinum 4 wire plugs, we used autolites in our race cars alot. And besides, a plug will last a long time with a good running engine. Just clean regap and all set.

 

Cool, just wanted to make sure. The Autolites are $2.62 a pair. Never believed in $25 spark plugs.

 

I have a glass beader and clean my plugs. I havent bought plugs in a while. The plug only puts out what the coil sends. Either a 1.50 plug or a 20.00 plug and all in between only puts out what the coil sends it.