You are here: Forums Pickups Chevrolet Silverado & GMC Sierra Chevy Silverado and GMC Sierra Mileage Improvement

Chevy Silverado and GMC Sierra Mileage Improvement

16 messages,  Last post on Oct 04, 2009 at 6:53 AM

You are in the Chevrolet Silverado & GMC Sierra Forum. Your Host is kcram

What is this discussion about? Chevrolet Silverado 1500, GMC Sierra 1500, Chevrolet Silverado 2500, Truck

Messages Page 3 of 3 1 2 3 Prev Next Last

Go To Msg # Search This Discussion

#12 of 16 Re: 2003 silverado 4x4 [obyone] by kazper62 Nov 12, 2008 (8:40 am)
Replying to: obyone (Nov 11, 2008 9:49 pm) hi    the tires and rims are 17" off a 2007 gmc 4x4 goodyear wrangler ats 38 psi   never changed plugs or wires it has 64000 miles on it   i use 5-30 havoline but thinking about switching to schaffers synthetic on a recommendation from a friend at the local napa store.   the rear axle ratio i have no idea Replies to this message: obyone (Nov 12, 2008 1:48 pm)
#13 of 16 Re: 2003 silverado 4x4 [kazper62] by obyone Nov 12, 2008 (1:48 pm)
Replying to: kazper62 (Nov 12, 2008 8:40 am) I'd do the switch to synthetic. Also change the plugs and wires even though GM says it's good to 100K. You will probably show a little increase with the changes. Nothing major but a little here and a little there adds up.
#14 of 16 Re: MAP SENOR adjustment to improve gas milage [mrmouse3] by stacks125 Mar 04, 2009 (6:41 pm)
Replying to: mrmouse3 (Jun 10, 2008 10:20 pm) that sounds like a great idea. Would you be able to let me in on some info on what it takes make it run on hydrogen and did you notice any power loss?               Thanks Stacks Replies to this message: mrmouse3 (Mar 07, 2009 5:27 am) dabell7 (Oct 04, 2009 6:53 am)
#15 of 16 Re: MAP SENOR adjustment to improve gas milage [stacks125] by mrmouse3 Mar 07, 2009 (5:27 am)
Replying to: stacks125 (Mar 04, 2009 6:41 pm) Depending on how elaborate you want to make the HHO device, it can cost any where from $100.00 to $900.00. I found all the plans on-line (google for HHO) and then built it. Mine cost me $130.00. I used 2 seamless stainless steel pipes (2" and a 2 1/4" by 9" long) $80.00 plus a water filter from Tractor Supply $17.50 and made my own bubbler $10.00 and bits and pieces from AUTO ZONE +/- $15.00. I had an increase of power and a increase in gas mileage. I went from (21 gal tank) 290 - 320 miles and now 380 to +/- 400 miles if I drive like an old lady. If I want to spend a little more, I probably could improve that up to around 475 to 500 miles per 21 gal tank. AND yes thats 25 mpg. I went from 15 - 18 mpg to 18 - 21 mpg. Replies to this message: dabell7 (Oct 04, 2009 6:53 am)
#16 of 16 Re: MAP SENOR adjustment to improve gas milage [mrmouse3] by dabell7 Oct 04, 2009 (6:53 am)
Replying to: mrmouse3 (Mar 07, 2009 5:27 am) Did you do anything with your MAP sensor or your O2 sensor? I am in the process of doing a HHO system.

Messages Page 3 of 3 1 2 3 Prev Next Last

Go To Msg # Search This Discussion

You are here: Forums Pickups Chevrolet Silverado & GMC Sierra Chevy Silverado and GMC Sierra Mileage Improvement