edit: Note that for the last few weeks a couple of people seem to be selling something on this thread by making several posts unrelated to the subject. These "testimonial" posts involve oil supplements, or brands of synthetic oil. Be careful of posts involving mention of brands. Back to the original post:
Original post: Oil Changes......necessary @ 3K or not? As a parts guy for over 30 years I can probably count the oil related engine failures on my toes and come up with change. The ones I've seen are from LOW oil level, NEVER changing oil, and high volume pumps starving the bottom end @ high RPMs. (big blocks especially) Otherwise I've seen LOTS of high mileage cars that run fine with a minimum of maintenance.
CHECK THIS ridiculous post out:
In reply to an earlier post on Sep 29, 2011 6:16:33 AM PDT
H2INVEGAS says: ok im a master tech and i recomend every3000-3500 and full synthetic 5000-6500 miles. i wouldnt waist my time or money on synthetic blend. but everyone needs to relize that a oil change is the cheapest service that you will ever do in 100k at $25 you will spend $825 wow ive spent more on dinner!! so please people change your oil and filter111
Long Distance Voyager says:
DUDE.........!!!! You are just the perfect example of why people should be questioning their OCI's. A guy that claims to be a master tech and can't spell, or even use spell check, has a problem with his caps lock, drives a Hummer? (based on your name), and makes enough money from selling unnecessary service to spend more than $825 on dinner. (and own a Vett as well as that gas hog)
Yeah, I'm gonna call right now to make an appointment to get my oil change from where YOU work........right!!!!
edit: worthy post.......
In reply to an earlier post on Sep 28, 2011 2:19:36 AM PDT
Richard A. Shipp says:
I own a '90 Honda Accord, with 512k, a '96 Toyota Avalon w/ 270k, and a 96 Toyota Camry w/ 311k. No motor work on either Toyota and only valves ground on Honda. I use the cheapest oil that I can find with the little starburst on it, as per consumer report. I replace the filter each time with a pretty cheap filter (it is name brand), and I don't change oil until 5,000 miles. Spend more if it makes you feel more secure. As for me I'll save my money for this high priced fuel.
edit: worthy post........
Posted on Sep 16, 2011 5:11:59 PM PDT
433,000 on a New Beetle TDI
302,000 on MB 300SDL
275,000 on Ford Bronco II
212,000 on Ford F150
176,000 on Volvo 240
. . . . .
I have never changed my oil at 3K - always on the 5s (5k, 10K, ...) and not had a bit of oil or wear related engine issues. I use the best filter available (Motocraft for Fords and Mann for my European ) and Castrol oil .
Most of the time the engine oil has just begin to change color by the time 5K rolls around, but I go ahead and keep to the schedule (so I won't forget and accidently go to 10K).
edit: this is the most interesting post so far..........
I work in an oil lab that tests oil for Caterpillar machinery and changing oil every 3000 miles is unnecessary. We have machines that test wear in the engine and I have gone over 10000 miles with the oil in my car in the desert heat of Arizona and there was no wear even indicated in the oil. If the oil was breaking down the engine, then it would show in the oil, because that is what oil does... protects the engine from wear... There was no change in the thickness of the oil either. It is the oil dealers selling their product.
edit: I've never seen so many idiotic comments. Of course that is because so many don't read all the posts..........and then think.....Some of the points that become obvious.
1. Those that sell oil........try to sell oil.
2. Those that have little actual experience with longer oil changes, tend to believe Jiffy Lube..........
3. Those that change oil often, don't realize how expensive UNNECESSARY changes are.
4. Those that have tested the recommendations through skepticism, keep the most money in their pockets. Because they DON'T change as often, and they still have engines that go as far, or farther, than those that do.
edit: another interesting one........check out the link to verify.........
Compulsive oil changers are actually causing more engine wear than the people who let their engine's oil get some age on it. Engine wear actually decreases as oil ages.
The fact that wear decreases has been substantiated in testing conducted by Ford Motor Co. and ConocoPhillips, and reported in SAE Technical Paper 2003-01-3119.
edit: a good point from a post.........
The color is NOT a good indication. Because of detergents, the oil can appear black very quickly. For another reason --oil pan gasket leaked-- I drained my oil at just 1000 miles. This is on an engine with 120,000 miles that ran very well. It was BLACK. That does not mean my engine was dying, or even unusually dirty or sludged; the detergents picked up the dirt as was their job. If you grabbed a bar of soap, and noticed the soap lather was pearly white and your hands still dirty, that's not a good soap! But the lather sure looks clean :-)
edit: another good post too long to put here, but if interested check it out.......Posted on Jun 7, 2011 3:04:55 PM PDT michael says: