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MPG Update: Better than expected.

GRN69CHV

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GRN69CHV Enthusiast

GRN69CHV

Posted
Posted

Did my first real highway run yesterday, from Phila, Pa to Baltimore, Md. Had cruise set to 68 mph (picture was taken at 63 mph running in posted 55). Overall this is much better than I could have expected. Truck is stock except for lowered in rear 1.25" (blocks removed) and added soft folding tonneau. Tire pressure reading 41 psi at full operating temps (air temps were about 50*), tires are stock Bridgestone AT RH-S in 265/65-18. I had looked real hard at swapping out the 3.08 gears, but the more I drive this the less the gearing bothers me. For what I do (all over the road) I just run it in 4th, 5th or 6th as I feel is needed. Only mods I may consider going forward are swap to an all season tire in same size or possibly go to 275/65-18 and maybe an exhaust swap.

 

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FL335i Enthusiast

FL335i

Posted
Posted

Good deal man. I agree, MPG on this new truck is good. Took about 12-15k for my truck to really get good mileage. I'm averaging usually 18-20mpg for combined tank average on 87. I have a trimmed front spoiler which can't be helping MPG's and I'm still doing well IMO. Good to hear others are getting decent mpg's. (FYI, I drive a lot faster than you. I normally do 79 or 80 on the hwy).

GRN69CHV Enthusiast

GRN69CHV

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Posted

Good deal man. I agree, MPG on this new truck is good. Took about 12-15k for my truck to really get good mileage. I'm averaging usually 18-20mpg for combined tank average on 87. I have a trimmed front spoiler which can't be helping MPG's and I'm still doing well IMO. Good to hear others are getting decent mpg's. (FYI, I drive a lot faster than you. I normally do 79 or 80 on the hwy).

Used to drive a lot faster, it's kinda gotten difficult to do in this area though, even on a slow day, traffic congestion is horrible. Posted 65, I run 68-70, gotten to the point where my time on the road is my time, just try to hang out in the middle lane. This is Northeast USA, if your in the far left lane, don't matter if your running 80, there's always someone riding your bumper, on the flashers.

 

PS, if you have a pic, I'd like to see the trimmed spoiler. Looked at mine, seems shortening it to the first horizontal line would be easy, maybe shortens it about 1"?

philbilly20 Enthusiast

philbilly20

Posted
Posted

I did a little 60 or 70 mile trip on I70 in the rolling flint hills and averaged 20.5 mpg, I was really surprised to see that when i was averaging 80-83 mph. I did notice at that speed i was shifting into v4 mode a lot more than say 68 or 70. Could the higher rpm make it easier to run in v4?

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