[Russr04]

Took the SSR to Sacramento and back. I ran a tank of gas through and with the 4:56 gears I averaged 16.8 miles per gallon. Not much of a differance. I was avg 17.5. I kept it at 70 miles per hour which is 2600 rpm. It purred all the way. No whine or extra noise. :seeya

 

[JimGnitecki]

Russr04: Yes, I have found the same relative lack of difference in fuel mileage.

What do you think of the extra throttle response? I love the effect it had on the feel of the vehicle!

Jim G

 

[Boosted]

Wow... I backed mine down to 70 yesterday and got an average of 21mpg from hot Atl back here to Columbus... I just wanted to see what kind of milage I could get running the speed limit....

hmmm about 5 mpg difreence

 

[Russr04]

Boosted you cant bs us. I can get 30 to when I am getting off the gas and going down hill. So what. We are talking about average. There is no way you are averaging 20 miles per gallon. I can also tell you even if it was 5 miles differance it is worth every penny of it. If I was worried about gas I would have bought a Honda. Lets see 5 miles per gallon gives you aprox. 55 more miles per tank , gee at 3 bucks a gallon a whopping $8.00

 

[Russr04]

Jim G I love it. Unbelievable differance in the throttle response. Combined with the predator it made an awsome differance. I had thought about doing it but your hard work is what convinced me. Thanks

Russr04

 

[Boosted]

Well Damm Russr04 you know what my truck can and cannot do from across the country. NOW THAT IS AMAZING! I am sorry that yours has lost it's mpg but there is no use on flaming someone else because of it.

Jim..You are right up the road from me..We can get together one day if you want and see it for yourself... Why should someone lie about fuel milage?

And to make something clear, If I was worried about performance I would not have bought an SSR.

 

[Bad Asphalt LOL]

Larger Tires

Seems like back in the 60's when we all loaded up to go to Mexico we would put on the large tires to save gas. Smaller tires for the drag's on saterday night.

 

[JimGnitecki]

Russ04: Before I changed my gearing, I made a 4500 mile return trip from Austin, TX to San Francisco, CA, and AVERAGED 20.2 mpg while doing 78 mph much of the way on I-10. I got that average BOTH using the trip computer AND manual calculations (I kept great records for the whole trip).

The reason you can get such good mileage on the SSR IF you just drive at a steady higfhway speed (instead of playing with the throttle!), is because it is MUCH aerodynamically cleaner than a pickup truck, and at steady speed, its weight (which is comparabke to a pickup truck) is only a factor on hills. (My Z06 Corvette used to give me 27 to 28 mpg routinely because of its VERY low drag coefficient).

In pure city driving, it's not NEARLY as good, because there you ARE accelerating away from stops and slowdowns a LOT, AND the weight is a big negative compared to the weight of a car when you do that. In Atlanta pure inner city traffic commuting to and from work on this contract assignment, I am averaging only 14 mpg. By the way, that is not detectably different with the 4.56 gearing versus the 3.73, as the 4.56 is actually the gearing that this vehicle WANTS under city conditions. It feels much btter than the 3.73 did.

Jim G

 

[Russr04]

You were doing the flaming over your 5 miles per gallon or did I just dream it. Check your truck and you will see there are two miles per gallon screens on the computer , one is the average. one is what you are getting at the time. I to was getting 20 at 70. I was talking about the average. That would be from start to stop. If you are truly getting an average of 21 then so be it. I would venture to say you are the only one. I am trying to let the owners know what to expect if they want to make the change. Your smart remarks about the differance in mileage were unnessary. But if I hurt your feelings I am sorry . No hard feelings. Russr04

 

[Boosted]

Wow... I backed mine down to 70 yesterday and got an average of 21mpg from hot Atl back here to Columbus... I just wanted to see what kind of milage I could get running the speed limit....

hmmm about 5 mpg difreence

Here I posted my quote again... Like I said in the first post From ATL to Columbus at 70 mph the average was 21 mpg. I never said anything negative about the gear swap or it's milage. I simply stated the milage I was getting in my STOCK geared truck. Where is the flame in that comment?

Boosted you cant bs us. I can get 30 to when I am getting off the gas and going down hill. So what. We are talking about average. There is no way you are averaging 20 miles per gallon. I can also tell you even if it was 5 miles differance it is worth every penny of it. If I was worried about gas I would have bought a Honda. Lets see 5 miles per gallon gives you aprox. 55 more miles per tank , gee at 3 bucks a gallon a whopping $8.00

So what was with this post then?

 

[Flassh]

My mileage on two 3000 mile plus highway cruises averaged at 20.3 the first time, and 20.5 the second time - there was a bit more 60 mph cruising the second time. The first trip, when I picked up the SSR and drove it home, was straight highway cruising at 75 - 80 mph., with very limited city driving when I pulled off the freeway for food and motels.

I'd say Boosted's numbers are pretty much dead on.

Ray

 

[Bad Asphalt LOL]

Gears Power and MPG

Gotta have this. Check this out Guys. http://www.sovereign-publications.com/auto-art-2.htm :thumbs ZF 5 speed automatic transmission

 

[Bad Asphalt LOL]

Try this link also

www.zf-group.com/am/pc/pt/ampcpt05.phtml - 13k

 

[Russr04]

hmmmm about 5 miles a gallon, you forgot the rest. Anyway i might have taken it wrong having a bad day. Forget it and I apologize. Russr04

 

[Russr04]

Maybe its the California Gas. I stand corrected I have never averaged over 18. I also have done mostly city and have my foot in it alot. If I was on the freeway it might be differant.

 

[Boosted]

no big deal..I do feel for you though with $3 a gallon gas prices...So far we have been lucky and Super is at $2.31...Gees I cannot believe I said lucky at $2.31....


I would love to do the gear swap on mine but have way to many issues with GM on the rearend now to even touch it...LOL

 

[Peaches]

California Gas

Just for the record. . . . Since I moved from Corona, CA to Flagstaff, AZ, my gas mileage has improved considerably in all three vehicles. My wife's Lexus RX-300 went from 17.9 to 19.3 mpg. My supercharged Toyota Tacoma went from 15.7 to 17.2 (premium fuel both places). My SSR went from 15.8 to 16.8 (hard to keep the foot out of it ). The gas is crap in CA, but what is ironic is the addition of MTBE to oxygenate the gas causes the poor mileage, which in turn makes us buy more gas and pollute the air even more!!!

Our driving styles in both places are/were comparable; my wife and I pretty much avoided sitting in traffic in CA by going to work extra early and coming home late most of the time. I just haven't taken any long trips that would optimize the mileage in the SSR, so I believe it when someone says they can get 20 mpg. It just makes sense based on the reasoning that has already been stated. :thumbs

 

[Boosted]

I want to be clear on my mpg statement. This is a one way trip from Atlanta GA to Columbus GA . 115miles with no stops running 70 on CC.

 

[JimGnitecki]

The negative effect of "gasahol" type fuels on mileage is well documented.

This stupid idea takes hold mostly in states where there are lots of farmers who grow crops that can be used to make fuel. They lobby their legislators, get a brand new market that raises the value of their crops, and WE pay the price.

Using these crop-based additives as diluters in real gasoline does NOT materially reduce our depednence on foregin oil, but it sures lines the growers' pockets at our expense.

Our biggest allies in fighting this crap are the trucking companies and independent truckers. The cost to them is much higher than it is to us.

Jim G

 

[cbruer]

My wife and I did 6200 miles from Illinois to San Diego and up highway 1 to Eureka, through Napa Valley , down to Bakersfield to Las Vegas and the Grand Canyon and home to Illinois. Did a couple of days of racing on highway 1 and averaged 19.4mpg for the whole trip.

Running 75 or so on interstates and enjoying the 2 lanes when possible.

Didn't think that was too bad.

Can't help but think if I put 4:56 gears in my '03' that it would not been near that good.