Thanks for the overall truck infoAmazing engine zero issues with the truck other than the oil usage more reliable than SOME of the other V8 trucks in the fleet plenty of power to do anything a half ton is made for
80k+ on that particular truck now it has leveled off at one quart aprox per 1.750 miles ...... I have found that driving conditions greatly effect the amount used for example on a long trip all highway from OKC to Alamosa Colorado and back it was nearly 2k miles all highway and it barley used ANY when doing service calls and city driving its right on at one quart per 1750 to 2000
Here are the oils this truck has used with ALMOST no difference in consumption
AC delco full syn ( Mobil Shaped bottles)
Mobil 1 Truck and SUV
Mobil High mileage full syn
Castrol Silver bottle GTX
Unscientific but the GTX 5w30 SEEMS to burn off slower but I am waiting a while for this to prove true
With recent oil price speculation I did grab 6 Five quart jugs of Silver GTX so this truck will be burning this oil for the foreseeable future