Duramax Lifetime Supporter
Join Date: Apr 2012
Location: Cameron MT
its difficult for me to say or work out, since I started using it pretty much from day one, so have nothing to compare against as far as improved milage.
Also, my thoughts about this is not to try and worry about any cost offset. Not using an additive I believe is detrimental for the injectors and general well being of the engine over a period of time, cost of any repairs, early injector replacement because of non use of additive would be far higher than the cost of a few ounces of additive per tank fill.
'MONGO' '02 2500HD 4X4 CC/SB
Built transmission - GOS Performance; Suncoast 6 speed conversion
Flex-A-Lite 284 Electric Fans; Mean Green Alternator
4" MBRP Exhaust; MBRP Downpipe; BD Power Exhaust Manifold
BatMoWheel (stock turbo housing), PPE Boost Valve
ProFlow Air Horn; aFe cold air intake
Edge Insight CTS with EAS expansion system, EGT, Boost & Ambient Temp; EFILive via CTS - Idaho Rob
AirDog II DF-165
Firestone Ride Rite air helper springs