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#1
11-08-2007, 09:27 AM
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Car runs better randomly -- why?
I've got a puzzling one for you guys here. My car, '83 240D with 218k miles, started running a lot better lately.
It's always idled so rough that it shakes the entire car, spluttered a bit when starting up, and been generally loud. This entire last week, it's been smoother, quieter while moving, less shakey while stopped/idling, and has had no trouble starting at all. I haven't done anything. Did I just get lucky? Is winter fuel better than summer fuel? (In FL, is there winter fuel?) Does the cold weather we've been having make diesel engines perform better? I'm pretty curious.
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1983 Mercedes-Benz 240D Automatic, A/C, Power Sunroof, Power Right Side Mirror 231K Miles FOR SALE MAKE OFFER 
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#2
11-08-2007, 09:32 AM
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I doubt there's winter fuel in Florida, there's not even winter fuel in Denver.
Could be that an air leak in the fuel supply is randomly sealing.
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1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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#3
11-08-2007, 09:55 AM
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It's just the calm before the storm...
 Just kidding. I hope your ride continues to improve with no effort on your part. How long have you had it? Maybe it is running better/getting cleaned out internally from the regular driving you are giving it. Just a random guess...
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1979 240D w/4 Speed Manual, Light Blue Estimated 225-275K Miles - "Lil' Chugs"
Sold but fondly remembered: 1981 300TD Turbo Tan 235K miles, 1983 300SD Astral Silver 224K miles
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#4
11-08-2007, 10:30 AM
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Quote:
I like the "air leak randomly sealing" option, there were always air bubbles in my inline filter before.
__________________
1983 Mercedes-Benz 240D Automatic, A/C, Power Sunroof, Power Right Side Mirror 231K Miles FOR SALE MAKE OFFER
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#5
11-08-2007, 02:18 PM
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Thats all it is I bet, these cars LIKE to be driven adn the PS might be cleaning stuff out. If you ran Diesel Purge directly into the engine, it might make a dramatic difference. OR , take the long road and simply continue to add a bit of snake oil to each tank.
BTW, I find, imho of course, the PS products to be inferior. I might recommend Howes " Meaner Cleaner", which you can find at Flyin' J's and truck places. The PS cetane boost has alcohol in it, so there I prefer the Stanadyne.
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