Compression Ignition Addict
Join Date: Sep 2010
Location: Northern California
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I use both the grey bottle of Diesel Kleen and Valvoline 2-Cycle at every fill-up. Since I started, I've noticed the injectors aren't as noisy, and had a slight power & fuel economy increase. Getting the lubricity back in the fuel system is the most important part. ULSD (Diesel #2), has pretty much deleted all lubricating factors due to the tree hugging, global warming, EPA liberals.
The white bottle of Diesel Kleen is just for use in the winter. It keeps the fuel from gelling, but it will lower your fuel economy. Unless your winter temps drop below 20* on a regular basis, I wouldn't use the white bottle.
06 F250 FX4 Lariat, 35" Nitto Terra Grapplers, 6" Lift Leveled w/Bilsteins, 4" MBRP TB Exhaust w/Cat Delete, Edge Insight w/EGT Probe & Dash Pod, SCT X3 w/SRL Tune From Matt @ Gearhead, Powerslot Rotors, Hawk Pads, Upgraded Oil Cooler Screen, Upgraded Turbo Drain Tube, Upgraded STC Fitting, Upgraded FPR Spring, CAT ELC Coolant, ARP Head Studs, Opti-Lube XPD, Coolant Filter, 45K Miles
Last edited by mah77; 02-12-2011 at 07:30 AM.