Spark plug OEM Toyota or Autolite

OEM Toyota Spark plug

OEM Toyota plugs will probably last forever but it depends if your gas mileage is like 5 to 10 miles less that's the only way I would change the back plugs.

Pros: excellent longevity
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OEM Toyota Spark plug

Last thing on my agenda is the spark plugs. Got it with 131K and I’m pretty sure the previous owner literally sold it to avoid doing them. I know I should have done them yesterday, but god it looks like a bitch, even with Car Care Nut’s guide. I’m planning on doing the job with the new plenum gaskets, and ignition coils while I’m back there.

Pros: planning new gaskets
Cons: looks like a bitch
Vehicle: Toyota Avalon
Mileage: 173000 km
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Autolite Spark plug
Jasonh123_
  • Starting:
  • Idle:
  • Acceleration:
Rating 1.0

Autolite plugs are junk. You’re better off leaving those 200k OEM plugs in it.

Cons: Autolite plugs are junk
Mileage: 200000 km
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