Originally Posted By: antiqueshell
Originally Posted By: ARCOgraphite
No. Toyota would be happy for you to get a 110k service life rather than 250K. I dumped the honda FF at 3K. Same on the Subaru. Had some oil usage during the add pack changeover then none. Your filter will bypass at hot oil high rpm and let all that garbage back into the engine. Many cam and main bearings are as tight as 13um diametrical clearance, the filter is rated no better than beta 2. Thats too tight and engine to leave that grit in there for that long - way past normal wearin. Even if the filter wouldnt bypass, I'd still change at 3k/4months. Hope you gave the car a couple or ten good runs of full throttle (3,500 rpm max) when it was fresh (under 50 miles) to seat the rings.
I doubt that ANY manufacturer is actively trying to greatly shorten the life of their own engines, it would destroy the credibility of the company and likely put them out of business.
The fact is that the engineers that designed and specified the maintenance intervals for your car did so to maximize life span, not the other way around.
I'll always put my trust in the hands of the car manufacturer as opposed to random guys posting on the internetz.
You don't really believe this, do you?
It is not the solely the engineers who devise the service and maintenance schedule for any car.
The marketing people have considerable input as well.
Lower servicing requirements and costs are a selling point.
The typical maintenance schedule is therefore a compromise between the techs and the marketers, and is intended to yield acceptable vehicle life.
Since relatively few cars ever see 200K, the maintenance schedule will work just fine.
If you want to see 200K+ from a car, you have to go a little beyond the recommended maintenance schedule.
Arco has it right, and I've always drained the factory fill from cars we've bought new after around 1K, while I always drain any car bought used as soon as I get it home.
This may be the difference between a 200K engine that still runs very well and one that's on its last legs.
I can afford a little oil better than I can afford either an engine or a replacement car.