ZR2 1500 the fuel efficient ZR2 option?

[BigSky]

If you are putting ZR2 and fuel efficient in the same sentence, you should go look at a Prius!

I pull around 7500 lbs on a fairly regular basis and at 70/72 mph I get around 9 gpm.

 

[MNNJR69]

We just did a trip to San Jose California from Las Vegas Nevada in my 6.2l and I got 400 mi one tank and average 26.2. I've been using VP octanium octane booster and it definitely improves the mileage.

 

[Spoolin]

We just did a trip to San Jose California from Las Vegas Nevada in my 6.2l and I got 400 mi one tank and average 26.2. I've been using VP octanium octane booster and it definitely improves the mileage.

That's impressive. Any other conditions present to make that happen? Looks like it was a night Drive so assuming light traffic and denser desert air, did you up the tire pressures as well?
Octane boosters can be good for your engine but I'd caution against using them too frequently as they can damage catalytic converters and O2 sensors.

 

[AXE]

I was reading a review on the Colorado ZR2 and was surprised to see EPA estimates of 15 city and 16 highway.

I saw another user post the ZR2 HD with an average of 15mpg in what appeared to be highway miles.

Is the 1500 in gas/diesel really the most fuel efficient ZR2 model?

Takes a lot of juice to turn 35s that weigh 90-100 lbs each. The old saying "there's no replacement for displacement" applies here.

 

[AXE]

We obviously don’t buy these trucks for fuel efficiency.

I find it funny they utilize a 4cyl for efficiency but still only get 15/16 mpg out of it. I’m assuming the gas tank is similar in size to my previous Tacoma. I would get sub 300 mile range after a full fill up in that thing.

They are just placating the EPA with that BS, same reason they use water thin 0W20 oil but it went from 6 to 8 quarts. It doesn't do anything on a single vehicle with minute improvements, but across their fleet, they can demonstrate a measurable improvement to dry hump the EPA climate police.