Join Date: Sep 2009
Location: Whereever we park our RV
Thanked 230 Times in 181 Posts
iTrader Score: 0 reviews
I use the XDP additive. It gives me another mile per gallon. Cost per fill is about a quarter. Son uses it in his 5.9 and it eliminated all his smoke. That means to me the fuel is burning cleaner. He gets about 1/2 mpg gain.
2007 2500 Mega 6.7L EFI Live, ATS Stage 2 68RFE w/ CoPilot, MHP/B&G TCM Mod Tune, 2 WD w/ NV271 Manual Transfer Case, Edge JWA Gauges, Nitto Terra Grappler 285 70 17, Fixed the DPF, NOX and EGR, much better now, AFE Stage 2 Pro Dry, Shibby Stage one intake, BM EWG, Autometer 7504/7505/7506 Boost gauges, Maxxbrake controller, Rancho 9000XL with MyRide, Hellwig air bags, A wealth of stealth.
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