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Old 02-04-2001, 09:26 PM
Snow bum
Join Date: Jan 2001
Location: Here and there . . .
Posts: 238
My 300SD is producing more smoke than I would like it to. The engine runs well, so if I can't fix the problem then it's no big deal, but I would like to run some Redline Diesel Catalyst through it to see if it will help. However, my engine has an oil leak somewhere. My tech told me not to worry about it, because the oil consumption is almost nill (about a quart and a half in 3000 miles with leakage). What I need to know is if using this diesel treatment can in some way affect my oil leak(s). I do not want to make it(them?) any worse. This may be a stupid question, but I would rather ask a dumb question now than replace my engine later. Thanks in advance for the input.

The MBs:
1976 300D (W115) - 330K and still going (sort of)
1991 300D 2.5 Turbo - Sold at 221K
1983 280SEL - Sold at 206K
1981 300SD - Sold at 232K
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Old 02-05-2001, 12:05 AM
longston's Avatar
Another View. . .
Join Date: Dec 2000
Location: Mark West, CA
Posts: 787
The Only Stupid Question Is The One You Didn't Ask!

DFC is a FUEL additive. As such, it does nothing to affect your oil leak. It may help with oil consumption, as it will reduce the amount of smoke (which is mostly diesel fuel oil anyway), clean your valves and compustion chamber, and help your car run better. You can also use 85+ instead, They are identical. Just read the label, and don't overdose the fuel system. It won't hurt your car, but can get expensive @ $4-5 a bottle.

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Hey, nice car, I think I got one sorta like it!
"We drive into the future using only our rearview mirror."
- Marshall McLuhan -

Scott Longston
Northern California Wine Country...
"Turbos whistle, grapes wine..."
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Old 02-05-2001, 09:12 AM
Mr. BILL's Avatar
Ghoulardi Rules!
Join Date: Aug 2000
Location: Austin, TX
Posts: 576
Hey, nice car! Red Line will help your engine run better. Don't worry about the smoke if your tech says it's O.K. You obviousely take good care of your vehicle. You can look forward to a long relationship with it.


91 300E 120K
90 300SE 275K (sold)
92 BMW 525iM 120K
90 BMW 525iA 175K
85 300D 175K (sold)
84 300SD 245K (sold)
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