superyooper Posted September 24, 2022 Report Share Posted September 24, 2022 Recently aquired a 2005 fleetwood southwind 32v with v10. Surprised at the low mpg so bought a 5star programmer only to discover the last owner had already programmed it but did not return it to the stock program prior to selling it. So therefore the ecm cannot be programmed untill it is unlocked. Has anyone ran into this before and are there any possible solutions? Gas mileage is around 4.3 so any input would be appreciated. thanks in advance Quote Link to comment Share on other sites More sharing options...
mptjelgin Posted September 24, 2022 Report Share Posted September 24, 2022 Getting a vehicle with a tune, but without the original tuner is a real problem. Is there any way possible to contact the previous owner about getting the tuner with the stock program? If not you may be able to go to a Ford dealer and have them reflash the ECM with a stock tune, and then take it from there. Many dealers may not want to mess with it, but if you have a friendly dealer you might try them. I had two different pickups with the V-10, and pulled heavy fifth wheels with both. While the mileage of the V-10 isn't anything to brag about, 4.3 mpg is unusually poor. Speed makes a big difference in mileage with this motor. How fast are you generally running? Quote Mark & Teri 2021 Grand Designs Imagine 2500RL, 2019 Ford F-350 Mark & Teri's Travels Link to comment Share on other sites More sharing options...
rickeieio Posted September 24, 2022 Report Share Posted September 24, 2022 (edited) I've had 3 trucks with the V-10. Well, 4 if you count the Dodge. Worst I ever got pulling a 40' cargo trailer with sleeping quarters was 5.5, with a terrible head wind. Got 9 mpg running around south-west Colorado mountains with that trailer. Of the three Fords. only one had the three valve heads. It was by far the strongest, but slightly worse mileage. That's what I pulled the above trailer with. Edited September 24, 2022 by rickeieio Quote KW T-680, POPEMOBILE Newmar X-Aire, VATICAN Lots of old motorcycles, Moto Guzzi Griso and Spyder F3 currently in the front row Young enough to play in the dirt as a retired farmer. contact me at rickeieio1@comcast.net Link to comment Share on other sites More sharing options...
Kirk W Posted September 25, 2022 Report Share Posted September 25, 2022 I owned a 36' class A with the 275 hp version of the V10 and added a Banks performance package to it, including the TransCommand for the transmission. We were fulltime in in for nearly 12 years and almost all of the miles were towing a Honda CR-V. I typically got 7 to 8 mpg with headwinds would drop to 6. I don't think that I ever had a tank that got less then 5 mpg. Quote Good travelin !...............KirkFull-time 11+ years...... Now seasonal travelers.Kirk & Pam's Great RV Adventure Link to comment Share on other sites More sharing options...
Ray,IN Posted September 25, 2022 Report Share Posted September 25, 2022 (edited) 5 hours ago, rickeieio said: I've had 3 trucks with the V-10. Well, 4 if you count the Dodge. Worst I ever got pulling a 40' cargo trailer with sleeping quarters was 5.5, with a terrible head wind. Got 9 mpg running around south-west Colorado mountains with that trailer. Of the three Fords. only one had the three valve heads. It was by far the strongest, but slightly worse mileage. That's what I pulled the above trailer with. News to me, I never knew Dodge made a V10. There is an ongoing thread on irv2.com comparing fuel consumption between the V10 and new V8 Ford engines. Edited September 25, 2022 by Ray,IN Quote 2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG retired;Good Sam Life member,FMCA ." And so, my fellow Americans: ask not what your country can do for you--ask what you can do for your country. John F. Kennedy 20 Jan 1961 Link to comment Share on other sites More sharing options...
durangodon Posted September 25, 2022 Report Share Posted September 25, 2022 Me neither. https://dieseliq.com/dodge-ram-8-0-magnum-v10-engine-specs-info-reliability-problems/ Quote Link to comment Share on other sites More sharing options...
rickeieio Posted September 25, 2022 Report Share Posted September 25, 2022 Mine was a '94, and was indeed a torque monster. But, I replaced it with a '99 Ford V-10, and even though the Dodge was 2wd v. the Ford being 4wd, the Ford averaged almost 3 mpg better. This was over all miles, not just towing, and I tracked every gallon over the time I owned the vehicles, about 90k miles each. In my experience, driving habits play a bigger part in economy than which engine you choose. Was riding with a friend a couple days ago who was complaining about the mileage in their F-150 2wd w/ Eco-Boost. I've had three of that same model, but all 4wd. I have averaged over 5 mpg better than they. But then, I drive like a grandpa......... Quote KW T-680, POPEMOBILE Newmar X-Aire, VATICAN Lots of old motorcycles, Moto Guzzi Griso and Spyder F3 currently in the front row Young enough to play in the dirt as a retired farmer. contact me at rickeieio1@comcast.net Link to comment Share on other sites More sharing options...
Pat & Pete Posted September 25, 2022 Report Share Posted September 25, 2022 Our 2000 Monaco Monarch has a 2nd generation V10 and gets 9 - 10 MPG . I pull a loaded utility trailer . Mostly run 55 - 60 MPH . I do let it get up to around 70ish on a long downhill , sometimes . Quote Goes around , comes around . Link to comment Share on other sites More sharing options...
superyooper Posted October 24, 2022 Author Report Share Posted October 24, 2022 Was finally able to get it figured out.Got help from tech support at 5 star. Seems there is a problem when trying to program using the 5 star unit. Have to be pretty fast when punching the keys on the programmer. Anyway I got it done and am very impressed with the results. Have yet to see gas mileage results but can feel the power increase for sure. Thanks to all who responded👍 Quote Link to comment Share on other sites More sharing options...
Kirk W Posted October 24, 2022 Report Share Posted October 24, 2022 41 minutes ago, superyooper said: Anyway I got it done and am very impressed with the results. Please do return and update us on what you get now. Also I invite you to participate in any and all of the Escapee forums. We really need to get some more active members! Quote Good travelin !...............KirkFull-time 11+ years...... Now seasonal travelers.Kirk & Pam's Great RV Adventure Link to comment Share on other sites More sharing options...
Solo18 Posted January 29, 2023 Report Share Posted January 29, 2023 I get 8-10 MPG on my 32' 2012 motorhome with the v10 engine. Quote Link to comment Share on other sites More sharing options...
Dutch_12078 Posted January 29, 2023 Report Share Posted January 29, 2023 Our average over 10 years with our 34' 2001 V-10 powered motorhome towing a Toyota RAV4 is 8.3 MPG. Quote Dutch 2001 GBM Landau 34' Class A F-53 Chassis, Triton V10, TST TPMS 2011 Toyota RAV4 4WD/Remco pump ReadyBrute Elite tow bar/brake system Link to comment Share on other sites More sharing options...
LovinRVing Posted March 10, 2023 Report Share Posted March 10, 2023 My experience with two V10s was similar to Dutch's, even at one time towing a RAV4 on our dolly. When we traveled I always used 7 MPG, towing or not, as my cost basis on budgeting fuel. Worked out well for us. The longest trip was to the Black Hills of So. Dakota, Mt. Rushmore, Deadwood up to Devil's Tower in Wyoming and back. Almost 4000 miles and for the entire trip we averaged 6.87 MPG which I was very happy with. Quote Link to comment Share on other sites More sharing options...
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