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Originally Posted By: demarpaint
Originally Posted By: Gary Allan
Here's a general rule. It's real general and can and will be altered for wherever you fall out of the norm.
Right now there's isn't too many people who exist in a service profile that CAN'T be handled with a 6 month OCI.
Under 10k per year:
More short trips ..more moisture ..more byproduct producing fuel enrichment ...more filter loading
6 months oil and filter ..and go as cheap as you please.
Over 10k a year (the more, the better):
Less warm up miles ..less moisture ..less filter loading per mile
6 months oil ...one year filter ..and go as expensive as you please.
None of this even approaches extended drains ..outside of most's imagination.
..and ..naturally, there will be those who find themselves in exceptional circumstances ..either real or imagined.
Good rule: How about the car that is driven twice a week 20 highway miles each way with a 2 hour wait period before returning home, totaling 80 miles per week? The oil is getting good and hot, but the car is not accumulating many miles. Would you leave that filter, lets say a Pure One or Mobil 1 filter in service for 2 years with the oil being changed out once/year?
That's why it's called a general rule ..very general
There you're basically taking a slice of a 12k/year daily driver. All events are well outside fuel enrichment. I doubt that there would be any liabilities due to moisture for either the oil or the filter and loading is a non-factor.
The biggest wear factor for that engine is the open valve that allows air into the cylinder. I think that the frequency of usage is enough to refresh the coating on the cylinder walls.
I don't think I forgot anything else (ponder
)
Originally Posted By: Gary Allan
Here's a general rule. It's real general and can and will be altered for wherever you fall out of the norm.
Right now there's isn't too many people who exist in a service profile that CAN'T be handled with a 6 month OCI.
Under 10k per year:
More short trips ..more moisture ..more byproduct producing fuel enrichment ...more filter loading
6 months oil and filter ..and go as cheap as you please.
Over 10k a year (the more, the better):
Less warm up miles ..less moisture ..less filter loading per mile
6 months oil ...one year filter ..and go as expensive as you please.
None of this even approaches extended drains ..outside of most's imagination.
..and ..naturally, there will be those who find themselves in exceptional circumstances ..either real or imagined.
Good rule: How about the car that is driven twice a week 20 highway miles each way with a 2 hour wait period before returning home, totaling 80 miles per week? The oil is getting good and hot, but the car is not accumulating many miles. Would you leave that filter, lets say a Pure One or Mobil 1 filter in service for 2 years with the oil being changed out once/year?
That's why it's called a general rule ..very general
There you're basically taking a slice of a 12k/year daily driver. All events are well outside fuel enrichment. I doubt that there would be any liabilities due to moisture for either the oil or the filter and loading is a non-factor.
The biggest wear factor for that engine is the open valve that allows air into the cylinder. I think that the frequency of usage is enough to refresh the coating on the cylinder walls.
I don't think I forgot anything else (ponder