AuroraZero

I have been wondering about this also for awhile now. Would I get better gas mileage in my '92 F150 ext. cab if I switched the 5.0 for a 4.0? What might be involved in that con version? Let me hear your thoughts on this please?

Just call me Sean

iTrader: (1)

We actually just went over this with someone else. The 4.0 is fine for a Ranger but it's too small for the F150. Gas mileage will be worse as the engine will struggle to get the heavier truck moving.

AuroraZero

Okay I can see that point but what about a 4.9? Would the gas mileage go up?

Herox21

The gas mileage would go up if you bought a 1992 escort and parked the truck for a while. :P

And I get 9-12 MPG with my 4.9L

Just call me Sean

iTrader: (1)

I can get 17 with my 4.9, but I only get 10 since I always pull my trailer.

AuroraZero

I have a '94 Taurus I am just thinking out loud. Just tossing some ideas around.

mustangGT90210

I can get 16 in my E4OD equipped 300 on 31s with 3.08s... used to get 17-18 on stock tires. What mileage are you getting now?

dirtcrew51m

For the 100th time, you cant improve mileage any more with the crap gas the brainless feds are making us use. 10-20% methanol, and other crap results in less mileage and more money for Obammer.

fordguy29360

I wouldn't even try to think about doing that.. Cause u will end up blowing up the motor sooner then u think trying to pull a heavy truck like that with that small of a motor in it..

AuroraZero

Understood and I shall never ask again! I was just asking everyone's thoughts on doing this. I did not mean to start crap over it and surely did not mean to upset anyone. I shall have this thread locked so no one else has to get involved.