I've got a 2000 Honda Insight that I've done 7500 mile OCIs on for the life of the car. That car now has over 203,000 miles on it. Also, I've used oversized Baldwin and Hastings filters on this car. I change the filter every oil change. My UOAs with Blackstone are always very good.
I now own a 2015 Toyota Prius Plug-in. Toyota recommends a 10,000 mile OCI. Toyota does not require synthetic filters for this car. But I'm curious/concerned about going 10,000 miles on a traditional filter. (Granted, probably about 10-20% of those 10,000 miles, the car is driven in EV mode, so we aren't really putting 10,000 miles on the filter.)
Still, at what length of OCI is it generally understood that one should switch to a synthetic filter? I'm tempted to go 10,000 miles with a regular filter, check out the filter, and do a UOA and see what happens.
I now own a 2015 Toyota Prius Plug-in. Toyota recommends a 10,000 mile OCI. Toyota does not require synthetic filters for this car. But I'm curious/concerned about going 10,000 miles on a traditional filter. (Granted, probably about 10-20% of those 10,000 miles, the car is driven in EV mode, so we aren't really putting 10,000 miles on the filter.)
Still, at what length of OCI is it generally understood that one should switch to a synthetic filter? I'm tempted to go 10,000 miles with a regular filter, check out the filter, and do a UOA and see what happens.