Anybody else cares to chime in any discovered ways to pull more miles out of the juice on our infamous sdp-s??
For me the Short answer is ......no. I just had overhead done and replaced cac hoses and clamps. Also checked bellows etc for leaks..... I do 107k on every load short haul (70 mph) and the best I get in the summer is 5.7 mpg. I've tried slowing down (for 3 weeks) and it didn't help... Kinda sucks ! But that's life with an SDP/POS.....