[harlmolla001]

Hey guys,
Been thinking about my fuel economy, and I decided it could use some improvement. I know im gonna get drive like a grandpa, and I need to do more of that, but other than driving habits what are your favorite/most effective mileage mods. How about fuel additives, someone told me I need to add a sulfur additive? Never heard of it...
Any additives that make a substantial difference for you guys...

 

[oldmopars]

I know nothing about additives, but I do know that tire pressure can effect your mileage. I increased mine to the max on the side wall (50 psi for mine) and I was an increase in my MPG. It was small, but it also cost me nothing.
I am looking into a new intake elbow, I am told that they can increase MPG due to the restrictions in the stock elbow.
A free flow muffler can add mileage improvements along with a free flowing air cleaner system (AiRaid, K&N, etc. )
I have also looked into the Mileage Max and other mileage improving computer tuners, but not used them. They claim 5%-10% over stock.
Last, look into Eccomodders. Its a web site of mostly small econo car nut that do things to get more MPG out of their cars, but some things can be applied to our trucks. Most of the mods that work concern airflow.

If you find stuff that works good for you, post up so we can try it too.

 

[bd797]

You can add two stroke engine oil to your fuel at a rate of about 1:256. This will give you the added lubrication for your fuel system which translates into better mpgs. I got about 1 mpg gain doin this. The bigger benfit thoughis better lube for the fuel system.

 

[JR's04Cummins]

I use opti-lube's xpd as a lubricant. It is expensive, but supposed to be good for the fuel system and help with anti gel. I didn't notice any mpg gain but it is now winter so it always drops and I let my truck idle so it is hard to determine if it helped or not.

 

[nbalakers32]

I add diesel kleen to my tank. My milage increased about 1.5 mpg

 

[chood45]

I've tried a few things. Super Tech TC-W3 two stroke engine oil from Wal-Mart and Power Service's Cetane Boost worked the best for me. I lost the injector tick with the two stroke oil and the puff of white smoke at start up in cold weather with the Cetane Boost. I din't think it really did anything for my mileage but it sure quietened the injection pressures under acceleration. Diesel Power Magazine has a good article on ULSD and fuel additives.

Power Service Products, diesel fuel additives, prevent gelling, clean injectors, disperse water, boost cetane, reduce emissions, improve fuel economy

http://www.dieselpowermag.com/tech/ford/0911dp_fuel_additive_test/index.html

 

[navman28]

I added salt to my fuel and gained 12 mpgs. Banks said it would work and it did.

 

[nbalakers32]

I added salt to my fuel and gained 12 mpgs. Banks said it would work and it did.

Ive never heard of that

 

[jay_rm]

Old timer tuning secret...
It has to be Kosher salt...

 

[Horse]

I added salt to my fuel and gained 12 mpgs. Banks said it would work and it did.

How much do you add at each fill up? Im making the drive to alaska and would like extra fuel mileage, this seems interesting.:stirpot:

 

[oldmopars]

Make sure that you dissolve the Salt in Acetone first to break it up or it will just clog your filters

 

[BC_03]

Man y'all are sorry.

 

[chood45]

I added salt to my fuel and gained 12 mpgs. Banks said it would work and it did.

That's the first time I have heard of that... :stirpot:

 

[BC_03]

Don't put salt in your tank.

 

[chood45]

Don't put salt in your tank.

Not planning on it. :agree2: :hehe:

 

[TEX]

crack heads..........

few things will help dont go by the advertised mpg increases.

you want to make everything work as efficiently as it can.

free flowing muffler is a start, the intake plenum (dr side) is not going to do a thing for u except cost money and look cool

other things r propane, free spin hubs (4X4) mileage box, keping the boost low, over/under drive unit. some of that stuff is big $$$

 

[brownbomber]

Hell i was talkin to this old timer and he told me to put a quart of tranny fluid at every fill up and it worked bout 1 to 1.5 increase wether your in it or drivin like an old lady

 

[BC_03]

We put tranny fluid in some of our tractors but I'd never put tranny oil in my truck tank.

 

[brownbomber]

thats what i was thinkin but the guy bout his truck (01) brand new and has added it to every tank and has never had any problems with it

 

[TEX]

u can get by with tranny fluid on the older diesels but not the new high pressure ones.

was tranny fluid made to burn???? didnt think so.......