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I've been meaning to ask this for awhile. I bought a Bully Dog GT tuner for my Titan several months ago and have wired it in for the gauges. I also used it to remove WOT restriction as well as to change the throttle response profile, but I have not applied any of the full canned tunes to my truck. I know I've also seen people talk about doing a 2* timing advance to their trucks. My question is, is the timing advance included in the bully dog canned tune or would/should I change that separately?

Also, with a timing advance will I need to change fuel? I've been using 87 octane from Costco almost exclusively in my truck. I can buy ethanol free gas from a couple stations in town, but holy $$$$ batman!

The only mod I've done to my truck so far is replacing the factory intake with the Bully Dog RFI.


Thanks for any advice!
 

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If you do a search, there are some threads on here about the bullydog. The timing advance is separate from the canned tune. I would run the ethanol free as much as possible if I could, I get much better mpg with it. Maybe the flex fuels do better with it, but when I find it, I get it. I've had my 15 just on the premium tune (at least that's what I think it is) because my truck wouldn't start on the regular tune (on a side note, I about crapped my pants, because I only had it for about 2 months from brand new and all I could think of was I fried something). They bullydog is just a crutch for me until I buy uprev and headers.
 

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Discussion Starter #3
If you do a search, there are some threads on here about the bullydog. The timing advance is separate from the canned tune. I would run the ethanol free as much as possible if I could, I get much better mpg with it. Maybe the flex fuels do better with it, but when I find it, I get it. I've had my 15 just on the premium tune (at least that's what I think it is) because my truck wouldn't start on the regular tune (on a side note, I about crapped my pants, because I only had it for about 2 months from brand new and all I could think of was I fried something). They bullydog is just a crutch for me until I buy uprev and headers.

Are you running the timing advance in addition to the premium tune?
 

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Yes I am running the 2° timing advance, WOT, and as I mentioned the premium tune. Truck runs great and get about 15mpg on mostly back roads. I don't have any performance mods yet, with the exception of s&b cai.
 

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Im flex and when I had the BDGT I ran 93 tune with 2* advance. No difference in mpg on any tune the only thing that helped was nonethanol gas. It was a good little tuner but Uprev is better and required with headers once the manifolds fail.
 

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Non Flex 2011 4x4

BDGT premium tune gave me about 15.0 mpg with mixed driving,
regular tune gave me about 14.2-14.6 mpg with mixed driving - both were with stock rims & tires (1 degree advance, I experimented a lot and 1 degree felt best for my truck)

Now with 305/55/20 & Ballistic Jesters with a small lift I get 12.0 - 12.5 mpg with the regular tune.

What it came down to for me was $, the math just worked out best to run regular Costco gas with that tune. Ethanol free gives you by far the best mpg, but the cost is too high (where I live) to justify buying it.
 
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