the oil evaporation is leaner and not an instant drop like upside down hockey stick graph, otherwise oil manufacturers would evaporate before use. And at the same time with the time you have oils degradation as additives level depleting, oxidation, thermal breakdown, contamination, sludge formation, viscosity changes.
...Leave old school alone. I really don't do many OCI's anymore, simply because I'm retired. I go maybe 2500 mi a year ???....And the ball and chain's job is super close to home, so it's the same for her car. So, in reality, I'm only doing 1 oil change with filter a year per car. I think 12 months of the same oil in an engine is long enough anyway. With all the hydrocarbons, crappy ethanol gas. I do take them on the highway every now and again to heat up the cats and clean them out though. Can't we just play nice in the sandbox ?...I realize a lot of you guys do some serious driving. I'm sorry if I offended anybody 
It's not your position, it's your expression that synthetics were a "scam", which is just downright denying the science behind base oils. This is a complex topic, if somebody feels better knowing little about it and just going by "feelings" so be it, but if you claim the stuff you are ignorant about is a conspiracy or scam, you are going to get called out.Tough crowd
That CRV has to be longer than 13 feet! Did you modify it?
....But, get this. Bank 1 & Bank 2 Cats just now crapped the bed @ 613,000 miles. I was impressed with that 600,000 miles is really impressive! For any car! Do you burn any oil?Hahahahahah....Sorry....Should have taken that " Grammarly thingy" that's always in my junk folder ....Let's get this grammatically correct now : The vehicle is a 2013 Honda CRC AWD EXL. 614, 863 miles . I'm just REALLY bummed out that the warranty was 5yr/60k, and the tranny blew at 4yrs/ 70k. Sad part is that I spilled and filled that tranny every 25k using OE Honda fluid. So, I took it back to Honda and had a re-manned one put in. 3yr/36k warranty. So far, fingers crossed, I put 544,863 miles on it. Still spill and fill @ 25k. The engine and tranny are on borrowed time, no doubt about that.
Never know, might make it to 1,000,000. Are you an Uber driver or such?
That’s impressive. I agree with others that you could have stretched the OCIs a bit with a quality synthetic, but hard to argue with success too!
Wow. How many miles a year? 50 cents a mile is pretty good though. My expenses for gas is about 20 ¢/mile.No Uber driver. My job at the local utility company, ( Con-Ed ), was a " Construction Rep". A Union job that required you to use you're own personal car to drive around to different jobsites scattered across Westchester County, NY. Sub-contractor's were doing the actual work, and I had to make sure they weren't cutting corners, and doing sh-t work. Got paid 50 cents a mile toward gas, and $250 bucks a year for maintenance. ( OH BOY...GENEROUS ) . Westchester County is huge. That's how I racked up the miles. I retired in 2022. Drove all day plus overtime. Glad that's over with
It all depends on the engine … Take a worse case Hyundai Theta II engine with almost 100% short trips and you are not going to want to go much past a 3K mile OCI . While you have had very good results going with longer OCI’s and saved a lot of $$ doing so indicates your engine and oil choice lend themselves to a longer OCI . Lastly , while you don’t have any engine problems yet doesn’t mean your ring packs are carbon free , you don’t have varnish or sludge building up in your engine , etc. All you know is your oil chsngevrrgimdnt hadn’t resulted in any engine issues to date - you don’t know how clean all of your engine internals are - you really wouldn’t know unless you did a complete engine tear down . Experts now suggest keeping an engine free from all deposits is a key factor in extended engine life (especially GDI engines) . Carbon build up in an engine is akin to having cancer - you want to eradicate it before it starts doing damage - then keep it at bay . What ever OCI you need to keep and maintain a clean engine is all that is important (don’t forget about having a clean PCV valve also) in increasing the life expectancy of an engine .If you like wasting money, go for it…
I stopped doing 3k intervals more than 20 years ago and I have saved literally thousands of dollars. Not a single engine problem. Who’s the smart one here?
I also think that frequent changes aren’t always enough and can be detrimental too if a high quality oil isn’t used. As soon as that oil hits the hot pistons, you’re going to get deposit formation, even in the first few miles, as the lighter ends burn off.
Whoa!! That must be a forum record. Only long haul truckers or maybe some Hotshot drivers would do more. Incredible. If you changed every 3k, you were under that car A LOT. Wow.Tired, roughly 68k - 70k a year....It really suc-ed !!!!! But, it was the highest paying Union job per hour. Worked that job from 2007-2022. From 1986-2007, I was in Gas Construction using Con-Ed utility vehicles. Took that higher paying job to boost my pension. In between, I worked 35 yrs on cars on weekends for a bunch of Pharmacies. They had delivery cars that needed servicing. About 25 of them. Did that on the weekends. Worked like a dog all those years, and now my back is shot. Should've went to college and got a desk job. Too late now. 2nd back disc went in on 6-16-25. I'm sure more to follow the older I get
There’s a Facebook group for high mileage odometer shots. You should post your odometer!
