jcd:

I always keep some on hand for use in the winter when the temperature plummets suddenly -- I've been caught short a couple times with gelled fuel. All the additives will lower the pour point of the fuel, preventing it from solidifying in the filter.

Otherwise, if it runs well, keep going!

Peter

__________________
1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!