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80 platinum bosch plug make 1 gram of platinum .
Don't do it. Bosch Platinum +4 plugs are not designed for your Ranger. Use the correct Autolite plugs. I believe they are called "dual platinum" or something like that.
It would be best to use the newer platinum plugs bosch makes a good plug It would be best to use the newer platinum plugs bosch makes a good plug
bosch platinum 2 spark plugs come pre-gapped and given a certain stock number to all vehicles meeting that particular gap requirement.
Bosch spark plugs has been a reliable brand. And many auto parts stores and auto mechanics would recommend them. Some Bosch spark plugs come with a warranty.
I recently purchased a '99 rx300 that had bosch plugs installed in it. My catalytic converter kept getting hot (according to lexus) because the bosch plugs did not offer proper spark and burn. They suggested iridium plugs. They will be installed this week and I will tell you if I notice a difference.
Yes, try this site for the correct spark plug for your vehicle:http://www.boschautoparts.com/Resources/VehiclePartFinder/
Bosch
I don't know what the "best" are but I am running Bosch Platinum 2 plugs and I like them. The box says "If you don't feel the difference, Bosch will pay for the plugs". I'm running Platinum 4 plugs, they fire better than the Platinum Twos but a little more pricey. I think they're 7 something a plug.
It seems to depend on the spark plug. I replaced the Motorcraft plugs with Bosch Platinum+2 plugs. Look here for what Bosch says about torques (search for the word "torque"): http://www.boschautoparts.com/Resources/FAQS/SparkPlugs.htm The box of the Platinum+2 plugs said to torque them to 15 ft.-lbs., which is what I did. Good luck!
any platinum plugs will fine. they come stock platinum so best to put back in. brand preference will be up to u i have Bosch in mine
If these are platinum plugs, they sell for $18.99 a pair in Canada. I don't know what they would go for in the States, but I would think they are cheaper.