Rubiranch
Salt Lake City, UT
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Joined: 03/09/2004
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mikehart92 wrote:Go ahead the throw your money out the window if you want to change at 3000.
I prefer to spend mine wisely and wait till the computer says to.
Mike
They're right Les, it's your hard earned money so spend it how ever you like.
I just took these two pictures;
Here's our Jeep Grand Cherokee with just over 133,000 miles it. The previous owner (we purchased the Jeep with 109,000 miles on it) changed the oil and filter every 5000 miles whether it needed it or not.
Here's my Mustang with just over 220,000 miles on it. I have changed the oil every 3000 miles whether it needed it or not.
Judging by the two pictures which engine do YOU think will last the longest??
Changing your oil at $40 per service every 5000 vs every 3000 you will save $500 in 100,000 miles, or $75 yr (based on the average of 15k miles/yr), or $6.30/mo, or $1.56/wk, or 22ยข per day.
Save all that money and change it every 5000 miles, you'll have enough money saved in no time to retire.
If you're only going to keep it for 100k, who cares?
JMO
* This post was
edited 08/10/08 07:14pm by Rubiranch *
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K3WE
Missouri
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Sorry, but a Jeep Grand Cherokee and a Mustang is an awfully apples-to-oranges comparison.
Completely different engine, a big potential for different driving patterns, dirt roads, winter, etc.
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C&KLewis
Blaine MN
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Joined: 02/24/2005
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That is a big part of it. Driving habits temperature changes duration of drives as in getting the engine fully warmed up to burn off any condensation in the motor. I don't think there is one right all inclusive number, again its your motor do what your comfortable with
and in the end you pay the piper one way or another.
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Rubiranch
Salt Lake City, UT
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K3WE wrote:Sorry, but a Jeep Grand Cherokee and a Mustang is an awfully apples-to-oranges comparison.
Completely different engine, a big potential for different driving patterns, dirt roads, winter, etc.
They are both OHV V-8s and are within 16 cubic inhes of each other. The Jeep has never been "off road" and has never towed anything heavier than an ATV. They are both fuel injected and the Jeep is 4 years newer.
More than 1/2 of the miles on the Jeep are from driving to and from a mountain home that is 300 miles one way, that's a lot of highway miles.
Yes they are different vehicles, but you could never convince me that had the oil been changed more often it would not be that bad.
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LIKE2BUILD
Mt. Zion, IL
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lesmore49 wrote:I have been wrestling with how often oil and filter changes need to be done, ever since I bought a new vehicle with a factory computer that tells me when my oil needs to be changed.
I use regular Dino oil...Quaker State.
I have always changed the oil and filter at 3000 mile intervals, for going on 40 years.
I've never had an engine related, internal problem in all those years, with many vehicles.
On one side, it's hard to argue with success. 40 years of 3,000 mile oil changes and no failures is great.
However, advanced oil technology and refinement I'd have to say that 3,000 mile oil changes have gone the way of......the dinosaur  Sorry I couldn't resist. Even with running conventional oil I'd say it's pretty safe to trust the oil life monitor system. Just to be safe I use Mobil 1 synthetic on both my 2004 Chevy 2500HD and in the wife's 2002 Potaic Montana. Also I use Delco filters in each of them with each change. Typically, my OMS goes off somewhere around 5,000 to 6,000 miles between changes.
KJ
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mowermech
Billings, MT
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I once knew a guy who claimed to have 150,000 miles on an old Buick straight 8, and NEVER changed the oil. Every 1500 miles he changed the filter, and added a quart of fresh oil. Those engines had a bypass oil filter, by the way. A Fram C-4, IIRC.
What does it take to keep your warranty in force? That's the change interval I would use.
If you are looking for validation of your maintenance schedule, sorry, can't help you. I, too, think you are wasting money and resources.
But, it is your money and your car. Do it your way.
Edit: You will notice I have 273,000 miles on my Dodge. I change the oil and filter when I remember it, usually about once a year. Thanks for the reminder, it is way overdue, as usual. I will go get 3 gallons of Delo 400 15W-40 and the Napa Gold filter, and get it done one of these days. The Jeeps are still under warranty, so the dealer tells me when the changes need done, and I take them in.
CM1, USN (RET)
'94 Dodge 3500 4X2 CTD, Std. cab, LB, 5 speed, 4.10 LS diff., Jacobs Rambrake, 273,000 Miles
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wcjeep
Tacoma, Wa
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Avoid Fram. They're not built to meet or exceed OEM spec. I missed the type of vehicle that started this thread. I think the Cummins 07.5'+ trucks have a sensor in the oil that checks for fuel dilution.
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lesmore49
canada
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wcjeep wrote:Avoid Fram. They're not built to meet or exceed OEM spec. I missed the type of vehicle that started this thread. I think the Cummins 07.5'+ trucks have a sensor in the oil that checks for fuel dilution.
I use GM Delco (?). Not sure if they are any better than Fram.
lesmore49
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Adam-12
Northern CA
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3000 mile oil change is a SCAM! Complete waste of money. It's been proven over and over again. If you don't believe it, go online and look up "oil analysis kits." You can collect a small sample of your oil and mail it to the oil analysis testing labs. There are several. For a small fee, the will break down your oil and tell you EVERYTHING about your oil and engine condition.
They will tell you things like: Oil life expectancy, if your engine is running too rich or lean, water in the oil, thermal viscosity index number, % of ash, metals, acids etc.... They'll tell you everything you didn't know existed about your motor oil.
Finally, they will undoubtedly tell you that your oil can probably go another 4-5000 miles. If you just changed your oil filter and top it off with a bit of oil, your engine oil could run longer.
Not pushing Mobil-1 oil, but if you go to their web site, you will see some videos on the punishment of what motor oil goes through and just how long it can actually last between oil changes.
BMW now states in their manuals that oil changes are to be done every 10,000 miles. I'm going on 10,000 miles on my Duramax diesel. My computer says I still have 18% oil life remaining. When I get to 5% or less, I'll change my oil.
I also use full synthetic oil for all of my engines. My little Nissan gets it's oil changed about every 13,000 miles. It has 210,000 miles on the odometer and it runs just fine.
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rob85546
Hot arizona
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yep....still many old schoolers though.. Except I go to about 15 percent ..
Big Katuna wrote:The 3000 mile oil change was valid back in the 40's thru the 60's with old bearing technology, leaded fuel, etc but the clean fuels today and modern materials, go with the computer and change at 35% or so. On the Caddy, thats about every 5000 miles, wifey's Honda is more like 7000-8000. The Honda's oil never gets black.
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