Originally Posted by
Kennedy
That's the kind of numbers I expect. How fast were you running? It doesn't take a tail wind, but it sometimes takes a bit to learn what helps and hurts economy. I'll have to revisit the DIC thing a bit later. I hate to mess with success, but it still bothers me that it is off like that.
John,
I have a personal fried that has an 05' LLY same as this one we've been following here on the fuel economy thread. I loaned him a Bully Dog to see if we could improve his fuel economy, which runs around 16-17 on the highway. No improvement. But, he drives very aggressively and very fast, around 80mph whenever he can and does not slow down at all for hills. He is also off and on the gas with his foot. I drove with him down to southern Baja California in my hybrid Honda, and my driving was worth about 5 mpg better than his based on nothing but driving style, no big deal in a Hybrid Accord that managed 30mpg over the 1500 mile trip with 5 and sometimes 6 people in it, but it is a bigger deal on the diesel and he puts lots of miles on it.
My question to you is this: Given that we know how he drives, is there any point to trying anything else, like having you write a custom tune? The truck is block stock, 4X4, crew cab short bed. The Bully Dog downloader is the only thing I have tried to help his fuel economy. He still wants to try something else but I'm skeptical. Do you have an opinion?
Owner, Phil's Auto Clinic, Hemet, CA, 1997 Napa/ASE tech of the year
2001 D/A Crew cab long bed, Edge Juice w/Attitude Monitor, Banks Exhaust, S&B intake, BD exhaust manifold, 152k miles, 2nd set of injectors 06/25/07
2000 Powerstroke Ford Club cab short bed, Edge Juice w/Attitude Monitor, 5" exhaust, S&B intake