Just bought 97 Mountaineer Quick question

[Lifted93explorer]

Hey guys i just bought a 97 Mountaineer for 2300 Higher miles alittle over 169k on it 5.0l v8 now i know there not good on gas mileage and it had an Exhaust leak im getting about 10 in the city 12-13 mixed at best got the Exhaust manifold out and it fell 2 pieces it was crack everywhere also so i welded the **** out of it for now will my gas mileage go up at all? I dont know much about these trucks at all i was a jeep guy.. what should these see? I wanted the v6 explorer or something but this one caught my eye.

Thanks

 

[dcdyd]

My 98 V8 5L does 14-15 miles per gallon on the streets and 16-17 miles per gallon on highway.

 

[plumcrazylx]

My 98 V8 5L does 14-15 miles per gallon on the streets and 16-17 miles per gallon on highway.

This is about what I get also, except in the winter months when I use the remote start alot. Then I get about 10-12 with alot of idle time.

 

[Elessar65]

12 to 13 mixed isn't terrible, but but its not as good as it should be. Probably want to go over the whole truck and check everything out anyways with a new (to you) vehicle. New fluids, filters, wires, plugs, etc... Make sure the MAF is clean (use MAF cleaner stuff and don't touch the wire w/ your bare hands). Make sure there are no vacuum leaks as well. If its not throwing any codes then probably just needs some PM and TLC.
Congrats on your new X!

 

[Joe Dirt]

If you do have a cracked manifold, check to see that the plug wires aren't scorched around the breach. If they are, it could arc, or misfire and throw an O2 code, and definitely affect gas mileage.

Once running well, you wouldn't have noticed much mileage difference at all in the V6 compared to the V8 anyway.

 

[5.0]

I get 21.5 mpg, mostly highway.