OT Who changes their motor oil at 3000 miles?

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I think it was a beer that used that tag line. I know Schafer is the one beer to have when you're having more than one.
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On 8/26/2011 10:11 PM, Ed Pawlowski wrote:

Nothing has changed. And i'd like to see the engine builder that recommends the 75,000 mile oil changes.
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Steve Barker
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On 8/26/2011 9:17 PM, Erik wrote:

Well said. And correct.
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On 8/26/2011 6:56 PM, snipped-for-privacy@att.bizzzzzzzzzzzz wrote:

exactly.
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On Fri, 26 Aug 2011 18:17:49 -0500, Steve Barker

last 40+ years. And that tis the introduction of lead-free gasoline. That is the only MAJOR change that has worked to make extended oil change intervals viable, because with unleaded gasoline there needs to be less Phosphorous and other additives to keep the lead from forming harmfull deposits. This reduction has reduced theacid level in the crankcase - allowing the buffer additives to last longer (which allowed the oil companies to add less to the oil, getting you back, basically, to pretty well the same point.
The other, lesser change, was the introduction of fuel injection, which controls fuel mixture better and reduces fuel dilution of the oil - which allows winter change intervals to more closely track warm weather intervals.
For short trip, widely varying temperature and humidity conditions, 3000 mile 3 month oil change intervals still make some sense. These conditions constitute "extreme" duty - as do trailer towing or extended high speed high load operation. Aproxemaetly 30-50% of north american driving falls outside of these parameters, making extended oil drain periods acceptable.
My car generally drives 3-5 km at a time, 3 times a day, 5 days a week, with an extra 15Km twice a day (one of those days)once a week and an occaisional 100km drive every couple of weeks. Every couple of years it gets a couple thousand KM put on over a 2 week period. 5000km (3000 miles) is 5 months of winter driving, and 7 of warm weather driving in a normal year.
My wife's car got about half as many trips of the same length per week, and mabee twice as many 100km trips, with one 3000km trip over the last 9 years. It's 16 years old and just turned the 160,000km (100,000 miles) 2 weeks ago - for an average of 10,000km (6000 miles) per year with 60% or more of those miles in the first 5 years, before we bought it.
Is 2 oil changes a year per vehicle a waste of time, money, and other resources??????
I think not.
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True from the perspective of a Jiffy Lube franchisee, but not necessary for the vast majority of vehicles using modern oil and built in the last 3 decades or so.
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Make it as simple as possible, but not simpler. (Albert Einstein)

Larry Wasserman - Baltimore Maryland - lwasserm(a)sdf. lonestar. org
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On 8/26/2011 5:14 PM, Larry W wrote:

suit yourself. you're probably right, given most you yuppies won't keep the vehicle long enough to matter. Might just as well not change it at all if you're only gonna keep it 50,000 miles or 2 years. Why bother.?
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FYI, my current 1996 Jeep Cherokee has 166,000 miles and uses less than a quart of oil between 6000 mile oil change intervals. My previous 1978 Chevy pickup, which I bought used in 1986 and kept til 2006 when I bought the Jeep, had over 250,000 miles on the original 350 V8, and I was never really conscientous about changing the oil in that truck either. BTW the engine was still running well when I sold the truck. I got rid of it because the bed and cab were pretty much disintegrated from rust.
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Larry Wasserman - Baltimore Maryland - lwasserm(a)sdf. lonestar. org
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wrote:

Did you buy the car?
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On Fri, 26 Aug 2011 18:19:44 -0500, Steve Barker

I don't know how often the oil was changed on the Grand Am my daughter bought with 120K on it. I *do* know that for the next 120K she changed the oil when the car told her to. [probably 5-6-7K]
At 240K the suspension & body were beyond her comfort level so she traded it in-- but the engine in that thing was perfect.
I've pretty much 'waited for the light' since 1995 when my Taurus had one. When the light hadn't come on for 5k the first time I checked with my mechanic & he said the computers in modern cars are smarter than the drivers- listen to them.
The Taurus got traded when the transmission got unbearable [150k or so] -- The impala has had the same treatment and is at 130k and never uses oil.
Jim
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Your experience is much the same as mine. Engines today are incredibly good compared to the rest of the machine. Automatics transmissions are far better than the old Power Glide, but still not as good as the typical engine.
I bought a LeSabre in 2001. I really like that car for the first 40,000 miles. Then, heated seat was first to go. Dealer wanted $675 for replace it. Both rear windows had broken mechanisms and would slide down so I propped them up with wood braces. Brakes lines rusted out, transmission was rebuilt, climate control went nuts. Cold on one side, hot on the other and varied with the heat or AC. Wheel bearing went, a $300 repair. A few other not serious but annoying problems happened.
Gave the car to my grandson after 10 years, but the engine still ran smooth as the day it was built.
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Not necessary to get your back up, Steve. You claim good results at a 3000 mile interval, and no one doubts that. Many if not most posts here are claming similar results at longer intervals. This is consistent with guidance from many if not most auto manufacturers. So when you make the declarative statement:

it begs to be challenged.
By the way, this yuppie has never sold or traded a car before 140-160K.
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On 8/27/2011 4:00 PM, ed_h wrote:

if you actually READ the owners manual, you'll see they suggest 3,000 mile intervals for sever service. Most all of our daily driving will fall into that category. I don't trade vehicles at all, i junk them. And I change oil at 3,000 miles. Many of my vehicles have gone beyond 300,000 miles and don't use ANY oil. ('cept that bigblock chevy, LOL)
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I hope yu have advised the auto makers world wide of this remarkable requirement. They need to change their manuals ASAP.
Harry K
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wrote:

They already have.
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On 8/26/2011 9:03 PM, Harry K wrote:

the manuals already say 3,000 mi under sever service. 95% of people fit this category.
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Hmmm...seems I tied that to the wrong person. I thought I was replying to someone saying it didn't need to be changed for some ungodly number of miles. My bad.
Harry K
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Doubt it. Just thinking about my neighbors, of nine cars I know of. three fit into the severe category. Of ten cars at work, two definitely do, two are questionable. While my informal survey is not scientific, it is a far cry from the 95% figure you use.
Fact is, no one can give an absolute number of miles for large groups of people. The best way, of course, would be oil testing. Some cars to have some soft of algorithm that does give you a time to change based on driving habits, miles, etc. If the people that are covering the warranty give higher miles, I'd say they are rather sure of the numbers.
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On Sun, 28 Aug 2011 22:47:51 -0400, "Ed Pawlowski"

I was a dealer service manager for 10 years. At that time. aproxemately 10% of my 600+ regular customers' driving patterns fit the "normal" schedule, while about 70% were definitely "severe" and the other roughly 20% were borderline - or they met several of the requirements for "severe" at least part of the year. There is not just the two extremes - so some customers stretched the change interval part way - changing at 4000 miles (6000km) etc.
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Now there is another claim that's going to need some backup.
I think I'm a pretty typical driver, and the system built into my car usually says it's time to change at around 7000 miles.
There may not be a precise definition of "severe service", but I'd be skeptical of any definition that came from anyone selling oil or filters.
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