Happy With GMC 4.8

[kg]

I wonder what the CW would be like with a GM 3500 with the diesel? Anyone got one?


Stay safe

 

[DST001]

I have a 2013 GMC cw srw 139 wb with a 4.8 and 6 speed tranny and I'm getting 16 to 19 mpg just depends how the wind is blowing and I stick it at 60/ 62 mph on the highway . I make sure I always run synthetic oil and transmission fluid and synthetic rear end fluid also plus I use injector cleaner every 5000 miles I like this van better than my sprinter the only thing I miss is a permanent bunk with a 3 skid load.