Some folks are happy with their MPG
, some aren’t. Those that drive a lot have good reason to look to improve MPG
while maintaining the utility of their pickup.
Over the years I’ve noted some things that patently do not help.
1. Snake oil Lubricants and fuel additives do not measurably improve MPG
They may make it run smoother or quieter but that doesn’t noticeably change the overall fuel consumption.
2. Bigger tires always reduce MPG
3. Commercially available tuners. Those work by increasing fuel flow. Generally that means lower MPG
. Tuners make the truck more fun to drive, but flow too much fuel to do anything but reduce MPG
I’ve had two premier tuners give it try for me. Believe me if somebody has a noticeable improvement (+1.0 MPG
or better), I’m INTERESTED. Both of them managed to improve my MPG
by 0.5-0.75 MPG
I do think that for a few guys with egregiously bad MPG
or less on a configuration that should get better) they may have a ECM problem that a commercial tuner may help, but for the guy or gal getting 14-17 MPG
… don’t kid yourself.
4. Propane or other auxiliary fuels. For a while there was propane available in some places that was cheaper on a $/MMBTU basis than No. 2. Propane fooled guys who only looked at their No. 2 usage, but unless you can get free propane (Where can I get some?) it still a fuel you have to buy. It’s an auxiliary fuel, not a catalyst. Same with methanol.
5. Free-flowing intakes and exhaust. I have both. Neither did diddly.
6. Fresh fuel and air filters. Diesels run with considerable “excess air.” A little less doesn’t change anything.