Do the valve adj on a weekend, or your next day off. It really is not difficult, just time consuming.

Bad fuel can be an issue. Add some PowerService stuff or Lubromoly to the fuel tank. I get diesel fuel at Wally world also, and have had no issues. There is always a line at the diesel pump. I also hit the truck stop on my route to an from work.

Stop leak is not a good idea, in any engine.

__________________
RRGrassi


70's Southern Pacific #5608 Fairmont A-4 MOW car

13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete.

99 W210 E300 Turbo Diesel, chipped, DPF/Converter Delete. Still needs EGR Delete, 232K

90 Dodge D250 5.9 Cummins/5 speed. 400K

Gone and still missed...1982 w123 300D, 1991 w124 300D