What is the rationale of changing the Ultra filter so often? In previous oil changes you said you would use them for two intervals. That's a $10-15 filter in Canada and I was wondering what the actual engine longevity/performance gain was at that interval. I understand that on its own its a small cost but when a person takes into account (all figures US) $25 oil, $8 filter, $20 UOA plus the value of their own labour time it's adds up. In my opinion, and what I practice, is to minimize oil change maintance costs and save that money in case of a mechanical breakdown or repair need so I'm not left freaking out if I'm left stranded. I would even have money to rent a car if needed.
If there was a significant gain to be seen it would be different. But at this point doing extra maintenance to see perhaps 1% lowered engine wear compared to the cost doesnt seem worth it, And for those saying doing maintenance makes them feel better, it feels better to have that extra stash of money when something goes wrong.
For the record I put 5000 miles on my daily driven civic in the last 12 months, 95% city, and I live in a place thats cold.
