The Official MPG thread
08-23-2012, 10:24 PM
#1
Senior Member
Thread Starter
The Official MPG thread
Ive seen tons and tons of posts on here about better mpg's for this truck and that engine. Let's make this thread cover a wide range of engine's/trucks whether it be 5.8, 5.0, 6 cyl, etc... At the end of the day, this information covers many different engine size's and style's. If you do not agree with some of the info, then explain. Lets keep this thread on topic with tech and not debate's.
-Your right foot. If you are trying to qualify on your way to work, your hurting Mpg. Moderate your speed. Staying at 65 mph or slower on the highway will help also.
-Tire pressure. Make sure your tires are properly inflated. The recommended psi is on the sticker in your door jamb. Tires with less rolling resistance help also if your truck is your daily commuter/beater. Even though most of us on here have oversize or aggressive tires.
-Air filter/Intake. Intakes breathe better than paper filters. The smoother the pipe the better it should flow. Multiple bends in the intake piping can also cut back on performance. Most people lean towards K&N filters.
-Exhaust. Replacing the manifolds with shorts headers or longtubes will help the exhaust get out faster. Bigger "Y" pipes and exhaust pipes (to a certain extent) will help as well. Bigger is not always better. Too big of a pipe can hurt performance.
-Electric fan. E-fans can cool the engine better and will free up some drag on the engine. Also note your alternator amperage. Some alternators will not hold up to the added draw on the electrical system. Make sure you have a fully charged battery also.
-Ignition upgrade & timing bump. New spark plugs, wires, coil, distributor cap, and ignition box will contribute to a better air/fuel mixture burn. I dont recommend advancing ignition timing until you have upgraded your ignition system and done your homework.
-Tune up. The cleaner your filters, oil, and fuel, the more efficient your engine is going to run.
-Gearing. If your running + 35" tires with the oem gear ratio, dont expect good mpg. When running oversize tires, with the correct re gearing, you can restore mpg and performance.
-Fuel Injectors. Bosch DRI's (Deposit resistant injector) with better spray pattern's can help atomization over the single pintle style injectors. Fuel injector cleaners like seafoam, lucas, etc. will clean varnish and deposits from the fuel system aswell.
-Fuel. Gasoline containing Ethanol will contribute to faster fuel consumption. E10 (Gasohol) typically get 3-5% fewer mpg than the same vehicle running on 0% ethanol gasoline. Vehicles running E85 usually experience a 25-30% drop in mpg.
-Weight. The less weight you are hauling around, the better mpg you will see. An extra 100 lbs can reduce your mpg by a few percent.
-Aerodynamic's. Yes, that cool looking huge flat steel bumper that you made can hurt your mpg. Not to mention the added weight.
You are not going to see 35 MPG in a fullsize V8 powered truck. With the info provided, you should see a noticeable increase in MPG and maybe that wont sting as bad as before. If you have any other facts, here is your cue.
-Your right foot. If you are trying to qualify on your way to work, your hurting Mpg. Moderate your speed. Staying at 65 mph or slower on the highway will help also.
-Tire pressure. Make sure your tires are properly inflated. The recommended psi is on the sticker in your door jamb. Tires with less rolling resistance help also if your truck is your daily commuter/beater. Even though most of us on here have oversize or aggressive tires.
-Air filter/Intake. Intakes breathe better than paper filters. The smoother the pipe the better it should flow. Multiple bends in the intake piping can also cut back on performance. Most people lean towards K&N filters.
-Exhaust. Replacing the manifolds with shorts headers or longtubes will help the exhaust get out faster. Bigger "Y" pipes and exhaust pipes (to a certain extent) will help as well. Bigger is not always better. Too big of a pipe can hurt performance.
-Electric fan. E-fans can cool the engine better and will free up some drag on the engine. Also note your alternator amperage. Some alternators will not hold up to the added draw on the electrical system. Make sure you have a fully charged battery also.
-Ignition upgrade & timing bump. New spark plugs, wires, coil, distributor cap, and ignition box will contribute to a better air/fuel mixture burn. I dont recommend advancing ignition timing until you have upgraded your ignition system and done your homework.
-Tune up. The cleaner your filters, oil, and fuel, the more efficient your engine is going to run.
-Gearing. If your running + 35" tires with the oem gear ratio, dont expect good mpg. When running oversize tires, with the correct re gearing, you can restore mpg and performance.
-Fuel Injectors. Bosch DRI's (Deposit resistant injector) with better spray pattern's can help atomization over the single pintle style injectors. Fuel injector cleaners like seafoam, lucas, etc. will clean varnish and deposits from the fuel system aswell.
-Fuel. Gasoline containing Ethanol will contribute to faster fuel consumption. E10 (Gasohol) typically get 3-5% fewer mpg than the same vehicle running on 0% ethanol gasoline. Vehicles running E85 usually experience a 25-30% drop in mpg.
-Weight. The less weight you are hauling around, the better mpg you will see. An extra 100 lbs can reduce your mpg by a few percent.
-Aerodynamic's. Yes, that cool looking huge flat steel bumper that you made can hurt your mpg. Not to mention the added weight.
You are not going to see 35 MPG in a fullsize V8 powered truck. With the info provided, you should see a noticeable increase in MPG and maybe that wont sting as bad as before. If you have any other facts, here is your cue.
Last edited by Full-boost21; 08-23-2012 at 10:56 PM.
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