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Old 03-13-2014, 11:34 PM   #1
frathouse
 
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Default How much oil should I b using per 500 miles

My 08 diesel with 525,000 miles runs great, smokes a little while warming up. I start her up and let her idle for 10 minutes before I get going. The first quarter mile theres a bit of blue smoke behind me and a little slow shifting. But after that it looks good behind me all day. I've only had my van about 1300 miles but oil consumption seems to be almost a quart every 150 miles. I could be a little off on my calculations but not much. Once I got her home I changed the oil and today I've just finished off my first 4 quart jug of Rotella. At this rate I'll never need to do a full oil change,, just a new oil filter every 10,000 miles.
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Old 03-14-2014, 12:23 AM   #2
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Default Re: How much oil should I b using per 500 miles

That is excessive consumption. 1 quart every 1500 miles is excessive as well. Is it leaking as well, or just burning it?
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Old 03-14-2014, 12:32 AM   #3
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Default Re: How much oil should I b using per 500 miles

There isn't a puddle under it, but then again I don't let it run in one spot for very long. The motor does have a fair amount of oil on it, I can't see where it is leaking from, maybe valve cover gaskets? looks like about an equal amount of leakage on both sides of the motor. Not really any puddle where it sits at night in my shed, so I'm guessing its only leaking while running. I thought maybe the last owner may have spilled a lot of oil while adding more but its starting to look like a leak somewhere. Any common leaky spots on this motor I need to scrutinize?
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Old 03-14-2014, 12:36 AM   #4
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Default Re: How much oil should I b using per 500 miles

Now that I think about it I do remember seeing quite a few dark brown spots in the snow in my driveway where I would do a 3 point turn to get it backed into my shed. I just shrugged it off as dirty slushy snow falling off my van. Maybe it was oil, I should probably don my face shield and a light and lay under it for a bit while its running.
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Old 03-14-2014, 01:27 AM   #5
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Default Re: How much oil should I b using per 500 miles

I have a 2004 and don't add any oil between 10,000 mile changes.
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Old 03-14-2014, 01:32 AM   #6
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Default Re: How much oil should I b using per 500 miles

Thanks robbin but that's not exactly useful info. Two different engines and we don't know your miles. Please help by addressing my questions. Thanks again.
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Old 03-14-2014, 01:56 AM   #7
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Default Re: How much oil should I b using per 500 miles

my 2008 has 28000 miles. it burns no oil. never add any between oil changes.

i had to add 1 quart before 1st oil change when new. never added any between oil changes since.

you oil consumption IS excessive. by far.
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Old 03-14-2014, 02:08 AM   #8
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Default Re: How much oil should I b using per 500 miles

Warming it up by idling an '08 is a bad idea for a number of reasons. Consider, firing up, and driving gently for the first few miles.

Do an oil analasis, and do a exhaust gas test. Sounds like you are getting close to needing a rebuild.

Icarus
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Old 03-14-2014, 02:15 AM   #9
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Default Re: How much oil should I b using per 500 miles

You might check the oil cooler, its under the fuel filter and oil would leak off the back of the motor onto the tranny, there are weep holes it goes into. Does it run hot? or does it throw codes? I would be interested in what you find.
Dan
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Old 03-14-2014, 02:18 AM   #10
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Default Re: How much oil should I b using per 500 miles

I had a old ford gas van that ate oil like that or worse about a qt. 30 to 35 miles.
It would smoke really heavy at stop signs.
I would have to add a quart every day after work and maybe two once a week.
After 3 weeks I started to put used oil in it as the oil was getting expensive.
I found that the holes going back to the oil pan thru the block from the heads were plugged with sludge.
I pulled the valve covers and ran a rod thru them and replaced the valve seals not sure if that is the correct name and the heavy smoke stopped.
After that I added a quart of oil about every 4 tanks of gas.
I drove it about a year after that and it always used about the same amount of oil till I got rid of it.

Someone said to run a qt of tranny fluid to clean engine out a bit. I guess the sludge let loose a little too fast and it plugged the oil return ports for me.
I later found changing the oil every couple weeks on a dirty engine is pretty good to get them cleaned up.

Some people say that the restore additive will help a worn engine but not sure if it does.
On these engines I would think the turbo oil seal is bad.
We had that problem on some tractors and they would go thru a couple gallons a day and smoke a lot till we could get them in to get fixed.

Chad
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