MPG 2011

[LCH21]

Last year, when I drove back to Pensacola, I drove I-10 to and from for a total of 4355.5 miles per Garmin TreadXL GPS. I used 245.9 gallons for an overall 17.7 MPG. Best tank was coming back through Arizona at 80 MPH with 268.8 miles and 13.6 gallons for 19.8 MPG. Worst tank was driving around Pensacola for 167.0 miles, 11.2 gallons for 14.9 MPG. Overall, the freeway driving was around 18.1 MPG. No Yakima roof rack and with Slee skids. BFG AT 285/65R18 KO2s. With these tires, for every 1000 miles indicated, per GPS, it is actually 1040 miles. The addition of the Slee skids gave me about two MPG more at freeway speeds. The removal of the roof rack was also significant but I don't remember as it came off within 200 miles of purchase. It is sitting in my basement waiting for the Alaska trip!

 

[roadsalt]

Changed my pcv valve yesterday with an OEM one. Super easy took less than 10 min. Also changed my air filters for good measure.

Filled 93 and drove 45 miles. Used 2.449 gallons, yielding 18.38mpg.

I’d say I’m in good shape now. Thanks gang.

My question is, if I go back to 87, do we think the gains from the techron, pcv valve, and maf cleaning will hold?

 

[04UZJ100]

Changed my pcv valve yesterday with an OEM one. Super easy took less than 10 min. Also changed my air filters for good measure.

Filled 93 and drove 45 miles. Used 2.449 gallons, yielding 18.38mpg.

I’d say I’m in good shape now. Thanks gang.

My question is, if I go back to 87, do we think the gains from the techron, pcv valve, and maf cleaning will hold?

Yes 87 will reduce mileage. Toyota V8s run better and get better MPG on premium. I have 5 of them and they all behave the same - especially in hot weather.

 

[roadsalt]

Yes 87 will reduce mileage. Toyota V8s run better and get better MPG on premium. I have 5 of them and they all behave the same - especially in hot weather.

Thank you. Now on to plugs and fluids. Summertime is the best time to get it all done.

 

[roadsalt]

Friday
I drained and filled both diffs and the transfer case. I tore the ground between the frame and tcase. Ordered a 6awg connector. Dif fluids were very very dark. T case was brown but not black.

Today
Installed the connector I ordered, but snapped the transfer case side bolt, oops. So I connected it to another bolt holding the heat plate on, shouldn’t be a big deal, right?

Then I greased the 4 u joints (until red came out) and the 2 slip yokes (only a few pumps) - what a pain that was! The coupling got stuck every single time.

Finally I did my 8 spark plugs. The one blocked by coolant lines had a nice amount of wet oil on it, as well as the ignit coil. I’d like to know what I should do about it if anything.

And of course I dropped one of the gaskets into the engine bay never to be seen again, but luckily my local autozone had an NGK replacement in stock for $8.

After I got everything installed, the excess oil burned off immediately in a white puff of smoke out the rear, and then it was driving / idling better than ever.

Last things on the list are coolant, but my rad was replaced 5 years ago so maybe not necessary, and taking it to the local transmission guy to swap that juice out.

I think that’s all the 150k PM I’m going to do unless someone chimes in

 

[manofthewoods]

What can I do here to improve folks?

2011 lx570. No mods other than wheels (rock warriors with Michelin ms2s 285/70r17) and a half iron man sliding drawer in the back instead of a seat.

My guesstimator is saying I get 9-11mpg

Judging from post(s) above, I have different experience...

My experience w/ my '19 LC, '97 LX450 & '13 Taco (4L V6)...
Compared to running 87 w/ethanol and 91 EF, I saw no difference in fuel economy. Just a lighter wallet.
I was both surprised and mildly disappointed. But, since my wallet is happier, so am I.
YMMV
Also, if you run the numbers, you'll never improve enough to make the price difference pay off.

 

[roadsalt]

Judging from post(s) above, I have different experience...

My experience w/ my '19 LC, '97 LX450 & '13 Taco (4L V6)...
Compared to running 87 w/ethanol and 91 EF, I saw no difference in fuel economy. Just a lighter wallet.
I was both surprised and mildly disappointed. But, since my wallet is happier, so am I.
YMMV

My mpg gain may be from the maitanance I did. I’ll have to run to empty and do an 87 test. The 570 calls for 91 though. Do the ones you have call for 87?

 

[manofthewoods]

My mpg gain may be from the maitanance I did. I’ll have to run to empty and do an 87 test. The 570 calls for 91 though. Do the ones you have call for 87?

Fair question.
Yes they all specify 87. I do run 85 at stations where it's offered, usually above 5,000'

 

[linuxgod]

I only find 91+ matters for MPG when I’m towing and it’s very hot out (95+). And that’s only because the ECU tends to back off engine timing and force me to downshift a gear. For normal driving 91+ improves engine timing by about 4 degrees and thus throttle response but the MPG doesn’t seem to actually change, oddly.