Hypothetical situation.
Let's say a hybrid vehicle sees a lot of short trips and this causes an elevated quantity of fuel and moisture to be present in the engine oil.
The levels of fuel dilution and moisture remain acceptable but will obviously rise as the OCI progresses.
This particular vehicle only accumulates 5,000 - 6,000 miles per year.
The oil being used has an unusually high starting TBN; let's just say >10. It is expected that the fuel dilution and moisture levels will remain below dangerous levels, even after a 10K (2-yr) interval.
However, what are the negative consequences of allowing an oil with high(er) levels of fuel and moisture to remain in the crankcase for an extended duration of time? Even with adequate TBN reserve, what is the potential for damage to seals/gaskets? In this situation, should TAN also be monitored?
Let's say a hybrid vehicle sees a lot of short trips and this causes an elevated quantity of fuel and moisture to be present in the engine oil.
The levels of fuel dilution and moisture remain acceptable but will obviously rise as the OCI progresses.
This particular vehicle only accumulates 5,000 - 6,000 miles per year.
The oil being used has an unusually high starting TBN; let's just say >10. It is expected that the fuel dilution and moisture levels will remain below dangerous levels, even after a 10K (2-yr) interval.
However, what are the negative consequences of allowing an oil with high(er) levels of fuel and moisture to remain in the crankcase for an extended duration of time? Even with adequate TBN reserve, what is the potential for damage to seals/gaskets? In this situation, should TAN also be monitored?