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9000how many miles on them ?
Ok Thanks, my gas mileage resently dropped from 18 mpg to 13 mpg "highway." The engine sounds a little different at cruzing speed (65-70) too! No codes.To me that left plug is going to start getting corona stain soon, something is up where that one came out of .... overheating probably
No oilNo oil in the plug cylinders ?
Doesn't use any oil, However my intake manifold has a little seepage at the gaskets that started a short time back.No oil
Oooh ... I would fix that next, but still say change those plugs and get that out of the way .... the plugs can definitely cause mpg issuesDoesn't use any oil, However my intake manifold has a little seepage at the gaskets that started a short time back.
No oil
Ok, Thanks for all your advice/help, will change plugs Asap! I do short trip driving (less than 10 miles round trip), as well as some longer trips occasionally around 175 miles round trip. I'm retired military, Trucks not driven much. The plugs that are in the engine now are NGK Standard Spark Plug (LZFR5C-11). Would you suggest a different plug?Oooh ... I would fix that next, but still say change those plugs and get that out of the way .... the plugs can definitely cause mpg issues