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Engine life of Toyota Corolla

Tiny
HAQ_AZIZUL
  • MEMBER
  • 1995 TOYOTA COROLLA
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 171,578 MILES
My car is 1995 Toyota Corolla LX. Its run mostly by Compressed natural Gas(CNG) as well as rarely with octane. Does only CNG will reduce the engine life or how can I longer the life of 4E Engine of my car
Sunday, August 7th, 2011 AT 6:44 AM

2 Replies

Tiny
CARADIODOC
  • MECHANIC
  • 33,873 POSTS
CNG burns cleaner than gasoline so there will be less sludge developed in the oil. The lubricating properties will last longer as well as the additives in the oil.
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Sunday, August 7th, 2011 AT 7:08 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Yes, CNG operates at a higher temperature and the valves does not have any additional lubriations/cooling from octane fuel which would cause more rapid wear of the valve seats.

Cylinders would be running slightly drier with lesser lubrications.

Use a higher quality engine oil, switch between octane and CNG more regularly, especially on long runs.

Check/adjust valve clearances regularly.
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Sunday, August 7th, 2011 AT 7:09 AM

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