03+ Yukon / Yukon XL with Stabilitrak
Posted 12 February 2007 - 05:54 PM
without towing ( 70-80 mph ) . I'll be driving my recently aquired 03 Yukon from MN-FL in about 10 days and just want an idea of what to expect. The window sticker for the truck says 14 city / 18 Hwy but I believe all the Yukons / Tahoes with the 5.3 were rated as such. The Stabilitrak trucks have the full time 4WD transfer case ( NR4 rpo code-Borg Warner 4482) which leads me to believe I should expect less then window sticker. All fluids except engine oil were just switched to Amsoil / Mobile 1 synthetic & new spark plugs / air filter installed. As per DIC, lifetime combined MPG is 15.5 but I dont know what kind of miles these were.
Also, any problems with your rigs as far as drivetrain / Air shocks ?
Thanks in advance
Posted 12 February 2007 - 06:13 PM
2015 White Double Cab Chevrolet Silverado Longbed 2500HD 4x4, 4:10 Gears, 6 Speed, 6.0 L
2015 Dark Blue Chevrolet Traverse 2LT AWD
2016 Champagne Silver Chevrolet Cruze LT Limited
Posted 12 February 2007 - 08:09 PM
Posted 12 February 2007 - 08:28 PM
Posted 13 February 2007 - 02:09 PM
"The BW 4482 design of the planetary differential allows use with the Vehicle Stability Enhancement System (VSES) vehicles. The VSES takes use of the planetary differential, by applying braking to a tire that has less traction and dividing the engine torque to the other axle. A high/low planetary carrier assembly provides the high and low ranges, which is a 4-pinion gear, sun gear, and annulus gear arrangement, giving a 2.64 low range reduction ratio"
Thats a good question regarding fluid, owners manual indicates All wheel drive with stabilitrak transfer case takes Dexron III, whereas the 4WD transfer case takes Autotrac II. This was very misleading because the Borg Warner case is not Awd but full time 4WD. I think only the Silverado SS, Sierra Denali & Yukon Denalis came with true AWD. The Alldata subscription confirmed the Borg Warner case took Dexron III. I ended up using Amsoil ATF synthetic
Any other comments on the MPGs I can expect with this thing?