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  #1  
Old 03-31-2010, 08:13 AM
SmokeyMcPot420 SmokeyMcPot420 is offline
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Default 10 mpg??

I calculated it, I have a 16 gallon tank, and get 80 Miles to half a tank, so that would mean 160 miles to a full tank. Thats horrible. I never let the engine rev past 4000 RPM when I shift. Anyone know what the problem could be?. 1998 ranger 3.0 V6. If anyone knows what it could be feel free to text me with any questions. 570-898-6485.
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1998 Ford Ranger

147,000 on chassis, 50,000 on engine.
3.0 v6 5 speed 4x4...4x4 don't work lol

What I hope to do- Paint wheels, new head unit, exhaust, fix four wheel drive.
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  #2  
Old 03-31-2010, 08:31 AM
surfer03133 surfer03133 is offline
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Default Re: 10 mpg??

when was the last time you did basic maintenance?
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  #3  
Old 03-31-2010, 09:03 AM
Built Ford Tough Built Ford Tough is offline
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Default Re: 10 mpg??

Change the following;?

4x4 tires to street toyos
your airfilter to a K&N or something that actually flows
a new fuel filter
change your oil to syntec possibly? It seems weird but I think it makes a difference.


Do you wheel it even though the 4x4 doesn't work? Because I know that the computer calculates wheelin' in with regular driving and can create quite irresponsible fuel economy in exchange for a little more power on the get go>?
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Danger Ranger: 389k Miles, and Being primed for a 5.0
1998 Ranger Splash, 134k Miles 2.5l 4banger - SOLD
Next Ranger Build: Supercharged Propane Injected 4bt 6 speed 4x4 ranger SAS
Current Rig: 91 d250 Single Cab Flatbed 6bt 5 Speed 4x4 Soon to have 100 horse ddp injectors and stage 2 fuel pin with 36" Miter cut 7" diameter sidepipe
Next Toy: 1994 f250 with built 429 fresh zf5 4x4 full exhaust and intake (carb)
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  #4  
Old 03-31-2010, 09:16 AM
Johnbaum13 Johnbaum13 is offline
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Default Re: 10 mpg??

1. It's a 3.0, so not the most efficient.
2. You rev it to 4000 rpm before you shift? there's a big problem right there.
3. Larger tires will kill your mileage, as well as throw off you speedometer readings, making your calculations incorrect.
4. Your method of determining mileage is faulty. Run a full tank of gas through the truck, recording miles driven, then fill the truck back up to full, and record how much fuel you actually used, and do your calculations from that. While you may have a 16 gallon tank, you hit E on the gauge before you run out of gas, so you never really use all 16 gallons.


All that said, I agree, your mileage is kinda low. When's the last time you changed the O2 sensors? Cleaned the MAF? Changed the plugs/wires? Cleaned the injectors? Changed the oil? Greased your bearings? Checked tire pressure?
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Last edited by Johnbaum13; 03-31-2010 at 09:18 AM.
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  #5  
Old 03-31-2010, 10:04 AM
Built Ford Tough Built Ford Tough is offline
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Default Re: 10 mpg??

Yes Johnbaum I believe there is a 2 gallon reserve tank, and his speedo might even be off?
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Danger Ranger: 389k Miles, and Being primed for a 5.0
1998 Ranger Splash, 134k Miles 2.5l 4banger - SOLD
Next Ranger Build: Supercharged Propane Injected 4bt 6 speed 4x4 ranger SAS
Current Rig: 91 d250 Single Cab Flatbed 6bt 5 Speed 4x4 Soon to have 100 horse ddp injectors and stage 2 fuel pin with 36" Miter cut 7" diameter sidepipe
Next Toy: 1994 f250 with built 429 fresh zf5 4x4 full exhaust and intake (carb)
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  #6  
Old 03-31-2010, 10:11 AM
sgtsandman sgtsandman is offline
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Default Re: 10 mpg??

Small things make a big difference. A plugged PCV valve can be a mpg killer. Plugs and wires make a difference too if they are old or faulty. A clogged air filter will cause the engine to run rich and burn more fuel. Tire pressure makes a difference, do you keep up on them? Add them all together and it can make a huge difference.
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1999 Honda CR-V EX, RT4WD, 2.0L, 5 Speed MT, 4.56:1, open differential
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  #7  
Old 03-31-2010, 10:12 AM
richarddhoward richarddhoward is offline
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Default Re: 10 mpg??

Quote:
Originally Posted by Johnbaum13 View Post
All that said, I agree, your mileage is kinda low. When's the last time you changed the O2 sensors? Cleaned the MAF? Changed the plugs/wires? Cleaned the injectors? Changed the oil? Greased your bearings? Checked tire pressure?
Change the fuel filter might be in order, also check your temp gauge, the coolant temp sensor can cause it to overfuel. Also what are your driving conditions? You might just need a Mexican tune up. (no offense to anyone that is Mexican) Just get on the free way for 30 minutes to an hour. A lot of city driving will cause your plugs to foul, as well as short trips. I run a lot of short trips because the town I am in is small, so every week I make a run out of town just a 30 minute drive or so, crank the tunes and enjoy the ride.
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97 Ranger - 4.0 V6 auto, 4wd, 31x10.5x15s Wild Country XTX Sport All Terrains, Warn locking hubs, Pioneer deck with iPod attachment, Snugtop Topper, K&N filter, scan gauge II, Hella 500 Lights, More parts coming, waiting for the paycheck to get bigger!

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  #8  
Old 03-31-2010, 10:16 AM
sgtsandman sgtsandman is offline
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Default Re: 10 mpg??

Fogot to mention that your fuel injectors might be sputtering. Try throwing a bottle of fuel system cleaner in the tank before refueling and run it to dang near empty a time or two. Chevron Techron cleaner is the best out ther for that. Pick up the bigger bottle for 20 some gallon tanks.
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2011 Ranger XLT, 4X4, 4 door Super Cab. 4.0L, 5 Speed M50D-R1HD, 3.73:1, 8.8" open differential, Jason Pace cap
1999 Honda CR-V EX, RT4WD, 2.0L, 5 Speed MT, 4.56:1, open differential
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  #9  
Old 03-31-2010, 10:25 AM
richarddhoward richarddhoward is offline
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Default Re: 10 mpg??

Quote:
Originally Posted by sgtsandman View Post
Fogot to mention that your fuel injectors might be sputtering. Try throwing a bottle of fuel system cleaner in the tank before refueling and run it to dang near empty a time or two. Chevron Techron cleaner is the best out ther for that. Pick up the bigger bottle for 20 some gallon tanks.
I use the Lucas oils, that is what I prefer though
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97 Ranger - 4.0 V6 auto, 4wd, 31x10.5x15s Wild Country XTX Sport All Terrains, Warn locking hubs, Pioneer deck with iPod attachment, Snugtop Topper, K&N filter, scan gauge II, Hella 500 Lights, More parts coming, waiting for the paycheck to get bigger!

Truck built in loving memory of Norm Howard
Outcast Racing
PNW Crew!!!
Afterhours Clan!!
Quote:
Originally Posted by aaron_ariens View Post
I think Henry just shit himself
Quote:
Originally Posted by Radness View Post
Its kind of like that carnival game "Whack A Mole" but with guns! Haha
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  #10  
Old 03-31-2010, 10:30 AM
Built Ford Tough Built Ford Tough is offline
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Default Re: 10 mpg??

Yeah maybe try Seafoam and tell me how it works :P
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Danger Ranger: 389k Miles, and Being primed for a 5.0
1998 Ranger Splash, 134k Miles 2.5l 4banger - SOLD
Next Ranger Build: Supercharged Propane Injected 4bt 6 speed 4x4 ranger SAS
Current Rig: 91 d250 Single Cab Flatbed 6bt 5 Speed 4x4 Soon to have 100 horse ddp injectors and stage 2 fuel pin with 36" Miter cut 7" diameter sidepipe
Next Toy: 1994 f250 with built 429 fresh zf5 4x4 full exhaust and intake (carb)
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  #11  
Old 04-08-2010, 04:32 PM
SmokeyMcPot420 SmokeyMcPot420 is offline
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Default Re: 10 mpg??

I dont shift at 4,000 Rpm's lol. I meant that I never let the engine rev over 4,000. I usually shift at 2000-2500 rpm. I have new plugs and wires a new MAF sensor, new throttle body sensor a new o2 sensor (not sure which one cause i think theres a couple of them). I did put a bottle of fuel injector cleaner in and it seems to do better, but not as it should, so Im gonna try another bottle of that. also I do have a new fuel filter. Air filter is next to come.
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1998 Ford Ranger

147,000 on chassis, 50,000 on engine.
3.0 v6 5 speed 4x4...4x4 don't work lol

What I hope to do- Paint wheels, new head unit, exhaust, fix four wheel drive.
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  #12  
Old 03-15-2011, 08:01 AM
dmrodriguez5 dmrodriguez5 is offline
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Default Re: 10 mpg??

did you ever fix the problem?
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1998 Ford Ranger Ext. Cab 4.0 4x4 automatic, 199,000 miles with a 60,000 mile engine in and a re-built transmission. 3 inch lift. Thats it for now, just got it.
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  #13  
Old 03-18-2011, 09:06 PM
ACS21 ACS21 is offline
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Default Re: 10 mpg??

Well you've had to replace the engine where did you get it and how long did it sit that right there it most Likely your problem don't expect anything to run like it should if it's not the original and who knows how the prev owners treated that engine I say take in to a machine shop let them give a good tune up and go from there.
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