Changed the original iridium spark plugs on my '04 LC at 124k. All looked fine and clean except 1 plug was finger loose. The coil rubber boot was more of a burnt brown than the grey color like the rest so I'm guessing a little compression was escaping. Used replacement factory Toyota plugs. Truck ran great before and I only changed to follow the regular maintenance schedule.
So, now with the new plugs I swear my MPG's have gone up 1-2 points. Is this all in my head or real?
Like I said, truck ran great before, even with the so called loose plug. Ran smooth and never a CEL.
Other's experienced this MPG gain with new plugs?
So, now with the new plugs I swear my MPG's have gone up 1-2 points. Is this all in my head or real?
Like I said, truck ran great before, even with the so called loose plug. Ran smooth and never a CEL.
Other's experienced this MPG gain with new plugs?