4 Mar 07

Ok, I still haven't changed my oil in my 300D. Here's the stats

Oil 22kmiles 17 months
Filter 7kmiles 5 months

Added a quart of oil last week.

Hasn't blown up yet, but according to the crowd....she's gonna blow at any time.

240Joe

Will not blow up, the engine may just wear out quicker due to a number of reasons the main one being soot build up. Just like reusing the same bath water over and over, it will get the dirt off but not too good or refreshing. But go for it..Regards Tom

tscorda,

Other posters have predicted it's going to blow with such force, that it will probably take me out with it. I suspect that's just their secret desire.

The 3kmile changers are scratching their collective arses trying to figure out how it hasn't melted down yet. They are SO confused.

240Joe

Suspect? It was claimed to be a desire, which makes it pretty much not a secret.

I don't think anybody has claimed that 3K is an ideal oil-change interval, but rather that your assumption that 3K is too short does not lead to a valid conclusion that oil need not ever be changed.

Claiming that the car isn't worth more oil is a valid argument. However, claiming that 3k oil changes means that we use significantly more oil is bogus. I burn better than 90 gallons of fuel oil in that interval. Two more gallons of oil THAT GET RECYCLED isn't going to mean much.

Joe, could you explain exactly how the dual-element oil filter works?

Matt L,

You've said that before but it isn't a fair comparison. Lubricating oil cost about $8 a gallon, not $2 a gallon.

tangofox,

One part of the filter (the paper element portion) filters down to about 30 microns. The bypass portion (cotton gin) filters to about 5 microns.

I suspect this is a trick question, but fire away.

240Joe

Neither of my cars have such a dual-element oil filter.

$8/gallon? I thought that you ran synthetic. The last oil I bought for the VW cost about $25/gallon.

But if it helps the car run a bit longer and I get lucky (i.e., don't get hit), I come out ahead. If I do get hit, I come out behind no matter what maintenance has been done.

You can do whatever you want with your car. Why not just continue the experiment, and report back at regular intervals that exceed a week each. This endless posting and replying to threads telling people to not change their oil is pointless.

How does anyone here know that you aren't changing it every thousand miles, only to claim otherwise? Your credibility is in the toilet.

But since both elements are in the same housing, how does it work?

Tango, separate return paths. The bypass filter returns to the sump.

Geez, can't we let this thing die!?

I would be more worried about the turbocharger than the engine really. They need oil to keep cool and the oil wont be doing its best job at that if its additives are depleted.

Though if you are adding a quart a week I doubt there's a problem there!

__________________
1985 CA 300D Turbo , 213K mi

Oh it will die now. If his engine blows up in the next three months we won't hear about it, such a shame.:fork_off:

__________________
1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200

the cotton waste portion is not the bypass. That wont filter down to 5 microns... Have you ever opened a filter?

The cotton waste section is useless. Might as well not even have it.

I sincerely doubt it can filter any better than the full flow section.

(About Hattie's comment): What's that supposed to mean? Is he really banned? And if so, how come?

__________________
-Matt

EPA Section 609 Certified MVAC Technician
-----------------
Oil Burner Kartel Member #10

Ahh the smell of Diesel Fuel, it's like coffee in the morning!

My Car:

1982 300SD Turbo Diesel (231,500 miles!) RIP

1984 300SD Turbo Diesel Custom (235,500 mi on driveline.) - On Road!!

www.icsrepair.com