Instruct: Classify the given review as either positive or negative.
Query: Made my explorer misfire Chose Autolite instead

These spark plugs may be a clever implementation of an old idea, but they don't get along with my Ford Explorer. Immediately after installing these, the engine began to misfire at 1500-2000 RPM no load and at very light load (30MPH in 5th gear). Misfire city. Fine under load, so they were not cracked. Hundreds of misfires on the OBD2 counter. Searching the internet revealed I was not the only one having problems with bosch plugs in explorers. Just to be sure, I also cleaned the MAF sensor and checked for vacuum leaks. Replacing these with autolite APP103 cured the misfire. I suspect the "no gap required" is not a hot enough spark. Avoid these in a ford explorer. I had to give a rating - 0 stars is more appropriate. I wish I could return them.