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Bigger tires = more gas
Sent from my DROID4 using Tapatalk 2
Sent from my DROID4 using Tapatalk 2
Better MPG for Tahoe 99
- Thread starter dpx
- Start date
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Thanks for all the responses, but no, I wont change to a Hilux
I often use the enigine heater before I start the car in the mornings. I also have relatively high air pressure in my tires and no unecessary cargo/weight so I think I have done most of these small things that one can do to increase the MPG without any real costs.
The car has a rear air deflector, does anyone know if it does any good? My rear windows still get dirt and im thinking of taking it of.
I need to change tires soon and Im wondering if I should go for a bigger size from my standard 245's, anyone have any experience with changes in MPG when changing the tire sizes?
My exhaust system is new so I would not prefer to change that, when I drive on the highway I have well below 2000rpm since I dont drive that fast. I belive that it might not help much to change to a bigger exhaust system as I am driving so slowly anyways and that the gain in MPG would be minimal and not worth it. Anyone disagree?
I also have a question regarding removing the top of the air box, leaving the filter exposed so the engine gets more air. This way there will be less 'resistance' before the air filter. Can I use the original filter for this or do I need to buy another verision? Im not only doing this for the MPG, I also do it for the challange of it! If I want good MPG i take the volvo
Doing that will only make you suck hot underhood air which is less dense and will give less power.
Also, hotter air will equal less timing which means less torque and lower MPG at cruise.
SunlitComet
OBS Jedi-Do Good
funny my K&N fipk sucks air from under the hood and it produces more power the stock unit.
besides not as much as a big deal when vehicle is in motion.
it's all about the flow.
besides not as much as a big deal when vehicle is in motion.
it's all about the flow.
GMCYukonDriver
Full Access Member
Best freeway mileage.
1. Buy winch.
2. Hook to back of big rig.
3. Put in neutral.
Ok, being serious now. I always think these threads are king of funny. I get 15 highway if I set the cruise at 65. I don't know what my rear gearing is, either 3.73 or 4.11. I'm thinking it's the former. There are some mods that will definitely increase economy, but many of them are so expensive, you might as well just save that money for gas.
For example, a K&N FIPK is $330 (I got mine for $120 used). Let's say it gives you 2 mpg, so you go from 14 to 16. If gas is $4.00 per gallon. You would "make up" 1 gallon of gas for every 7 gallons at 16 mpg. So $330/$4 = 82.5 gallons you have to save to cover the cost., but you make up only 1 gallon per every 7 gallons you burn at your higher mpg, so it would take 577.7 gallons to make up for it! That's almost $2400 in gas to make up for a $330 CAI!!! Stick to the little things that are pretty cheap and proven, otherwise, it will take a long time if you want to see any savings. Now if you want added power or stuff, then go for it, but if all you want is to save money, I think I've shown that it is very difficult to do with anything more than tune-up, tire pressure, driving style, and possibly gearing.
BTW, exhaust might be, it just depends how much you drive and how long you plan to keep it for.
1. Buy winch.
2. Hook to back of big rig.
3. Put in neutral.
Ok, being serious now. I always think these threads are king of funny. I get 15 highway if I set the cruise at 65. I don't know what my rear gearing is, either 3.73 or 4.11. I'm thinking it's the former. There are some mods that will definitely increase economy, but many of them are so expensive, you might as well just save that money for gas.
For example, a K&N FIPK is $330 (I got mine for $120 used). Let's say it gives you 2 mpg, so you go from 14 to 16. If gas is $4.00 per gallon. You would "make up" 1 gallon of gas for every 7 gallons at 16 mpg. So $330/$4 = 82.5 gallons you have to save to cover the cost., but you make up only 1 gallon per every 7 gallons you burn at your higher mpg, so it would take 577.7 gallons to make up for it! That's almost $2400 in gas to make up for a $330 CAI!!! Stick to the little things that are pretty cheap and proven, otherwise, it will take a long time if you want to see any savings. Now if you want added power or stuff, then go for it, but if all you want is to save money, I think I've shown that it is very difficult to do with anything more than tune-up, tire pressure, driving style, and possibly gearing.
BTW, exhaust might be, it just depends how much you drive and how long you plan to keep it for.
