We did our own tune-up for my dads newly aquired 78 300D. When he drove it to work today he noticed a puddle of tranny fluid under the car after work. So we went out and bought new tranny fluid and a filter kit to see if it would solve the leak problem. which it did, We opened up the air filter and saw it was as black as my dickies(pants) so we bought a new air filter, oil filter, and Mobil 1 5w40 truck and suv oil. Because we assumed it wasnt changed in a while since they didnt bother to change the air filter.

We put in the new oil, oil filter, and air filter. Started the car and let it warm up. After warmed up took it for a drive and it felt rougher? We suspected either the tranny or the oil. Not sure but it did idle rougher and ran a little harder.

Any thoughts. By the way right now its running on pure D2 diesel no wvo yet, my dad wants to see how many miles he can get on one tank of diesel.

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Current:
05 E320 CDI
07 GL320 CDI
08 Sprinter
05 Dodge Cummins
01 Dodge Cummins

Previous
2004 E55 AMG
2002 C32 AMG (#2)
1995 E300
1978 300D
1987 300D
2002 C32 AMG(blown motor :[
1981 300SD
1983 300SD
1987 300SDL
2002 Jetta TDI
1996 S420
1995 S500
1993 190E 2.6
1992 190E 2.3
1985 190E 2.3 5-Speed

My dad says now it starts off sluggishly and cathces up speed slowly. This wasnt happening before the oil, filter, etc changes it was running great. It would start off pretty quickly and catch up speed fast. It didnt idle rough either and now it does

__________________
Current:
05 E320 CDI
07 GL320 CDI
08 Sprinter
05 Dodge Cummins
01 Dodge Cummins

Previous
2004 E55 AMG
2002 C32 AMG (#2)
1995 E300
1978 300D
1987 300D
2002 C32 AMG(blown motor :[
1981 300SD
1983 300SD
1987 300SDL
2002 Jetta TDI
1996 S420
1995 S500
1993 190E 2.6
1992 190E 2.3
1985 190E 2.3 5-Speed

the fuel filters?

it sounds like you might be sucking air in the fuel

tom w

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

Don't you mean 15W40?

Hopefully he means 5W40.

Funny ...ha ha?

Or

Funny, funny?

sorry, couldn't resist

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Current Benzes

1989 300TE "Alice"
1990 300CE "Sam Spade"
1991 300CE "Beowulf" RIP (06.1991 - 10.10.2007)
1998 E320 "Orson"
2002 C320 Wagon "Molly Fox"

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