6.4L Upgrades and Aftermarket - EngineUpgrading or adding OEM or aftermarket equipment to your 2008-Up Super Duty truck with 6.4L Power Stroke diesel engine. Please confine discussion of topics in this forum to those items that are specific to the 6.4L Power Stroke engine.
I have been running the +275 tune for about 5000 miles with no problem. I seem to average around 15 in the city and 20 (unloaded) on long trips.
I recently flashed to the +210 for towing my TT (Rockwood UltraLight - 7500 gross) and had no problems with EGT's - I averaged 13.75 on a 100 mile pull @ 65MPH.
I have been running the +275 tune for about 5000 miles with no problem. I seem to average around 15 in the city and 20 (unloaded) on long trips.
I recently flashed to the +210 for towing my TT (Rockwood UltraLight - 7500 gross) and had no problems with EGT's - I averaged 13.75 on a 100 mile pull @ 65MPH.
I am going to check into it. I am looking at putting a filter kit on it from K&N as well hope the millage picks up that would be nice.
Sorry if I’m hijacking this thread.
Does our 08 f250 record highest speed and RPM for dealers to void warranty? Also if everything is returned to stock is there still some device saying that I did make modifications to the truck?
Thanks everyone
They can tell you accessed the OBD port, but they don't know what you did. You just tell them you went to AutoZone to see if any codes were in your computer because it was sluggish one day. You know, play stupid.
I am getting 18.8 mpg hand calculated, that is when I am not doing WOT. We cary them in stock with the exhaust systems. I am also running the drop in Green filter. No issues so far. Tunned at 350 miles end of may and now with 2200 miles.
Im running the spartan as well i have the 75, 150, 210, 250, 275 and the 310....i personally like the 250 the best. I have 60,000 miles on the truck and 35,000 are tuned @ 250. I love it!
__________________ 2008 F-350 King Ranch 4X4, job build 3, tuned by Spartan
RIP: 95 F-350 Powerstroke, 4X4, 5 Spd, Crew Cab,Long Bed, 4" Superlift on 35" BFG All-Terrain, Diesel Innovations 4 Bank chip, 4" exhaust, DIY Tymar, Ranch Hand repalcement bumpers
Well did the install today and so far i'm another happy Spartan customer. I'm running the 210 tune and theres definitly much more power and truck runs like a dream. Not nearly as much smoke as i imagined. Actually only see a little if 3/4 or more throttle. As for mileage I can only say I cleared the computer and drove for 104 miles down flat interstate and hovered around 21mpg. Now is that right well i don't know. I do know that normally the needle is a good bit further off the full mark during that trip so i'm very positive the mileage is better just don't know how much better. Before, the computer on that same trip would say 16.5mpg so obviously i'm hoping the computer is close. My truck now feels like it can breath and feels very relaxed on the hwy.
__________________
2008 Job 3 6.4 F250 Lariat CC 4x4 Dark Stone
ATS Color Matched Street Flares
Eaton ELocker "front" and Truetrac Limited Slip "rear"
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.
F350 4x4 6.4 Job 3 spartan 
)
Another positive Spartan customer
Linear Mode
