Paisano
Well-Known Member
92' Ranger XLT with 2.9 V6. It's time to change my spark plugs. For many years. I have used the standard, cheap Motorcraft SP419 plugs. I am planning on installing the SP486 platinum fine-wire plugs because these are supposed to last longer.
Are there any disadvantages in using these fine-wire spark plugs in my old truck? Any reason I would not want to use these?
Are there any disadvantages in using these fine-wire spark plugs in my old truck? Any reason I would not want to use these?