Car literally will not crank much in the cold

[mabbonizio]

Hi Guys,

Sorry if this has been gone over 100000 times but I'm in need of some advice.

82 240D (runs great, typically starts immediately in all weather conditions)

Went out to start the car this morning knowing that several factors might contribute to a harder start than usual.

- Have B20 Biodiesel in the fuel tank

- Have Rotella dino 15-40 in the crank case

It's about 9° here in Philly and I am street parked.

Car cranked and cranked and cranked (very slowly) omitting some puffs from the tail pipe until the battery died. I called AAA and the guy (whom asked where the carburetor was) gave me about 5 minutes of his time with a portable jump pack.

He tested the battery and told me it was OK (its like two years old) and that the motor was most likely turning over so slowly due to frozen sludge in it

Anyways, any advice on how to get this thing to crank quicker? Am I SOL for having B20 in the tank and 15-40 in the crank case? Should I just get my own jumper pack?

I'm curious if maybe his jumper pack just kinda stunk? Thinking maybe I'll throw some additive in the fuel and try and jump it off a running vehicle?