@OP: Personally, I change my oil in my 4Runner every 10K or so. If I towed a lot or drove in dusty conditions a lot I would change it sooner, as specified by Toyota. I am expressing this as an opinion. I did much research when I purchased this vehicle into engine and drivetrain specs. I will also recommend the OEM 0W-20 full synthetic fluid as it is probably the best for this vehicle. Again, I researched this ad nausem too. There is no danger to changing it sooner. If you want to change it at a closer interval that's fine although I have not read any data, either Toyota generated or otherwise, that shows changing 0W-20 full systhetic more often than between 5-10K (depending on driving conditions) will cause your engine to last longer. Filter changes are a key there. Hope this helps. Now to adress this poster:
Under no circumstance would I consider allowing 10,000 miles to elapse between oil changes. Seems to me that future buyers of our vehicles would much prefer to see documentation which substantiated that our oil had been changed every 5,000 miles, rather than 10,000.
In addition, I find it terribly coincidental now that Toyota is offering free oil changes for the first two years of ownership, that miraculously, the oil change recommendation has went from every 5,000 miles to every 10,000 miles.
Over the course of the next 150,000 miles the difference between changing out the oil every 5,000 miles compared to 10,000 might be a grand, so what. An extra $125 a year over the next eight years is a trivial investment. Then again, there is also the reasonable possibility that more frequent oil changes could help avoid other costly issues from arising.
When I have sold my previous vehicles, campers or planes, I have had friends, or friends of friends standing in line 3-4 people deep waiting to buy my stuff. And all because they were aware that what I was selling them had been maintained at a level that exceeded minimum scheduled maintenance requirements.
You are advocating and practicing a maintenance plan that states simply "More is Better." You base that on a strategy of "It costs more" as justification. Your results of this practice and strategy seem to be "...standing in line 3-4 people deep waiting to buy..." because people want to buy your "stuff" is reason to keep doing what you have in the past. In my experience, very few people are driven to buy something simply based on past maintenance practice. Most are driven by price. Member Brockeverly proved you wrong with his nifty math on the "cost saving" by going to 10K in this thread.
"Want to change it sooner? Do it, it won't hurt anything except your wallet."
-Antman
Exactly. I'll change my oil twice as much (in truth, probably more often than that, because i can) as recommended for an extra $125/year- or whatever the amount- for the next eight years. No worries, whatsoever. If I thought I wouldn't be able to afford to maintain my vehicle at a level that exceeds minimum stated requirements and satisfies my own self-imposed higher maintenance regimen, I wouldn't have purchased it.
To each his own.
Again, the "More is Better" policy with higher cost as justification. Let me ask you something: If a guy decided to put a different viscosity and type of oil in his vehicle (based on his history) than specified, and he changed it every 2K miles, and then he decided to put a Wix filter on, and he again changed it every 2K miles, would you buy it? Or how about this: Another guy changed his oil according to manufactures spec every 10K. In addition he installed a bypass filtration system using Pall filters that he also changed every 10K. He also had Blackstone Labs analyze it every 25K. Would you buy that? According to your way of thinking of "More is Better" then i'm sure you would choose the first way. Nevermind Pall makes one of the best filtration systems on the market and there is no comparision between the two filter medias.
If you want to learn more about my opinion and some very knowledgable posters here read this
http://www.toyota-4runner.org/5th-gen-t4rs/109588-oil-change-0w20-wtf.html as this thread is only about three months old.
Pardon me, but what's up with the insults ("wannabee Drivetrain engineers")? I'm relatively new to this forum, but is talking down to others a common occurrence? Is it accepted by forum participants? Is it tolerated by the moderators?
Seems to me that a person should be able to make a point- agree or disagree- without being insulting or talking down to others, regardless of their level of education or how they happen to earn a living.
First of all, I never mentioned you by your screen name in my post. It apparently struck a chord with you though. My comment of "Wannabee Drivetrain Engineers" is meant to show that, while the OP solicited opinions on oil change duration, most answers that were posted afterward came from opinion with no factual evidence whatsoever.
You made a point with your posts. You value quantity over quality. Again, I did not mention you by name nor did I insult your level of education. Some of the smartest guys I know have a high school education. A friend of mine who is absolutely brillant with over 35 patents in highly technical mechanical devices graduated from Vo-Tech with a Masonry Diploma. Yes, he can still lay blocks too. There are many good, smart people on this board regardless of their education or field. There is even a Lawyer (gasp) who posts on here that knows what he is talking about lol.
At any given time on the 5th gen forum there is around 3X as many visitors as there are members. These are people doing research to either buy a 4Runner or are looking for answers to questions they have. When I post I try to cite best accepted practice when expressing my opinion and when possible I cite references. Antman, Harper, PhillyD2, Ducmonsta, Nashman, Intruder, Brockeverly, Okki, Mick1, JTraskell, Philsey, Jesse and many others post great, well thought out answers and I'm sure they have helped many people doing research. I try to do the same.
There are some things where opinion is important with no justification. Such things as "Which color do you like" or "Which wheel looks better" are of course opinion based with no factual comment needed. Most "Form" comments are that way. When it comes to something related to "Function" though, most opinions and comments need to be fact based with some science and documentation available or cited.
Lastly, Alright Homey, how old do you think I am??? 90?? Wow, that hurts. That hurts a lot. You "Cut me to the bone" (to quote Andy when talking to Barney). Hope you are doing well lol.