Silverado 3500 2WD V8-6.6L DSL Turbo VIN 2 (2004)
All fuel companies will start transitions to ULSD (15 ppm sulfur max) in mid-2006. Refineries in the U.S. and Canada are required to start producing
ULSD on June 1. U.S. and Canadian supply terminals must be converted to ULSD by September 1 and retail stations must be converted by October 15.
In the U.S., both LSD (500 ppm sulfur) and ULSD (15 ppm sulfur) will be available. However, the EPA's own pre-compliance reports indicate that 95%
of on-road diesel fuel will meet the 15 ppm standard on a nationwide basis. All LSD (500 ppm sulfur) and Off Road Fuels (greater than 500 ppm sulfur)
must be segregated and clearly marked. In Canada, only 15 ppm on-road diesel fuel will be available nationwide by October 15th.
Below is a description of GM vehicles and proper fuel usage:
In January of 2007, a new 6.6L Duramax(TM) Diesel (RPO LMM-eighth digit of the VIN is a 6) will be released. This 6.6 LMM engine must use the
ULSD (ultra low sulfur diesel) fuel. The 2007 LMM diesel equipped vehicles will require the use of ULSD for proper operation of the emission control
system. These vehicles will be labeled "ULSD Required". The vehicles will be labeled in two locations (per regulation) near the fuel filler and on the IP.
The Owner's Manual and diesel supplement will have several instances/sections that define proper fuel use.
Important:
Off Road Fuels should not be used in any General Motors highway use vehicles.
All other Light and Medium Duty 6.2L, 6.5L, and 6.6L RPO codes LB7, LBZ, and LLY diesel engines (including 2007 model year LBZ and LLY)
can use either the LSF (low sulfur diesel) or ULSF (ultra low sulfur) diesel fuels.
Disclaimer
