thanks for the replies.

thats amazing that B33 made with solid at room temp yellow grease was ok into the single digits. that must mean my B50 made from soy oil will be ok down there.

does anyone blend kerosene? i know thats even recommended in the MB manual for cold weather.

dd

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'85 300D, 'Lance',250k, ... winter beater (100k on franken-Frybrid 3 Valve Kit)
'82 300D, 'Tex', 228k body / 170k engine ... summer car
'83 300TD Cali Wagon 210k, wife's car