Now think about that for a second. They have the CART rules they have to meet plus customers to keep happy. Do you really think that any of the car companies are going cheap on something like plugs? Or for that matter that any one brand is going to provide better mileage and performance. If that were true every car and truck would be using the best (same brand) plug out there because they can not afford to let the other companies be able to claim that all thier vehicles get better performance and mileage cause they use brand A and not brand X like (insert company name here).
Back in the 90's a guy I knew complained about his car getting worse mileage and the performance dropping off. I checked it out for him and found that he was past due new plugs and had at least one plug wire that was bad. He insisted on Split Fires because he had seen the ads. So I did the tune up and put new wires on his car. Man was he ever sold. Could not convince him that had he just gotten regular plugs and new wires he would have seen the same improvements just because his car was now running on all 8.
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Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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