I'm giving my 2010 corolla to a relative. It has been an excellent vehicle, never requiring a garage visit, but has had several recall fixes. Within the last 6 months, I've noticed a little drop off in MPG, maybe a mile per gallon off my avg of about 39mpg. I have 156,000 on this relatively flawless vehicle.
Should I consider changing the plugs and wires?
Should I invest in new battery cables? (The battery itself was changed 2 years ago.)
Should I update the grounding on the vehicle throughout the engine compartment?
(I've read in the past that vehicle grounding deteriorates within 3 years of purchase, and renewing electrical grounding can achieve a 10% increase in efficiency).
Appreciate your thoughts and comments.
Should I consider changing the plugs and wires?
Should I invest in new battery cables? (The battery itself was changed 2 years ago.)
Should I update the grounding on the vehicle throughout the engine compartment?
(I've read in the past that vehicle grounding deteriorates within 3 years of purchase, and renewing electrical grounding can achieve a 10% increase in efficiency).
Appreciate your thoughts and comments.
