The spark plugs are due at 60,000 miles ...... they usually go that distance
without any noticeable performance decrease .... Depending on the quality of
fuel where you live, fuel injection cleaning is not necessary ... you can
buy a high quality cleaner to add to your fuel tank .....

Hi Guys,
When do I replace my spark plugs on my SUV -
it's got about 56K on it now and wife (who drives
it almost exclusively) said it's not as peppy as it once
was - I say motor is wearing a bit (normal age) and
we've done a Fuel Filter and Air Filter recently.
What about a F/I cleaning? Any comments?
Thanks,
Bob/Orlando, Florida