Might be due to, colder weather, winter grade gas, dirty PCV valve, dirty EGR, dirty air filter, dirt Mass air flow sensor (there is a spray you can buy to clean it out), dirty fuel injectors, low tire pressure, larger then oem tire size, front and/or rear end needs to be aligned, dirty air filter, weak battery or weak alternator. If you replace or clean any of the above pieces make sure you disconnect the battery for at least 15 minutes so the ECU will recalibrate itself.

On a gallon-for-gallon basis, ethanol delivers less energy than gasoline. However, today's vehicles are designed to run on gasoline blended with ethanol in small amounts (up to 10%) with no perceptible effect on fuel economy Flex-fuel vehicles designed to run on higher ethanol blends experience reduced miles per gallon, but these engines can be tuned to minimize detrimental effects on fuel economy

Volkswagen claims that the V-10 TDI Touareg will get 28.8 MPG "extra-urban" and 23.2 MPG "combined" according to UK figures. owner of a V-10 TDI Touareg in Florida reports a running average of 19.7 MPG in mixed driving and 28.5 MPG at a constant 50 MPH.

That said, on average, Touareg owners have reported about 14 MPG for the V8 in mixed driving. Average in-town mileage for the V8 appears to be about 12. The average reported highway mileage for the V8 is about 18. We have received a report from a V6 Touareg owner who has averaged 14.5 MPG in mixed driving during the first 800 miles.

AMSOIL Motor Oils reduce friction and drag better than petroleum oils and other synthetic oils, resulting in significant mileage increases. In a recent 1.2 million mile demonstration, AMSOIL showed a 4.5% increase in gas mileage. Other tests have shown greater increases under certain weather and driving conditions. Every vehicle is different, as are driving habits and conditions, and it is difficult to predict an actual increase. Top

Vehicles usually get between 7 to 13 miles per gallon. This depends of course on gross weight, the vehicle size, the speed that you travel, whether you are towing anything.

The mileage depends on the size of the unit and the dirving conditions. Usually, you will get between 8 and 14 miles per gallon.

Besides the obvious FUN of zipping around town, through curves, down straight-a-ways and then coming to a stop on a dime, scooters are EXTREMELY economical. Some scooters get as much as 125 MPG (YES! That’s MILES per gallon!). For the popular TN'G Venice, mileage varies from around 60 mpg to over one hundred mpg, depending on how you ride.

Mileage depends on the size of the motor home, driving conditions, and how you drive the RV. If you drive the RV like you drive your car or truck you will get 7 or less MPG. Generally, you will get between 7 and 11 miles per gallon. You have to train yourself to be easy on that accelerator.

This depends on the size of your vehicle and wehere you take it. Normal flat road driving, averages about 9 miles to the gallon.

Make sure you are using a fresh air filter. You may consider getting an oil-wetted filter from TRD or AMSOIL. They are very efficient, reusable after cleaning and re-oiling, and somewhat expensive. They are free-flowing compared with efficient paper filters and you can clean them as often as you like. I clean mine every 10k. The TRD filter is oil-wetted cotton and the AMSOIL filter is oil-wetted double layered plastic open cell foam.

Very little. My car had a lifetime average of 26.5 miles per gallon (over 10,000 miles). With the base CTSC kit, mileage decreased by just over one mile per gallon to 25.5 mpg. As always, mileage varies depending on how often you're boosting.

Your fuel economy will essentially stay the same. In fact, almost 90% of our test vehicles incurred less than a +/- 1 mpg change in fuel economy.

A: The mileage is generally in the area of 25 MPG city and 35 MPG highway, with the exception for the Nomad Convertible R/S. The Nomad has been tested at 25 MPG city and 45 MPG highway, mostly due to the improved aerodynamics.

While it is impossible to predict the future price of natural gas, it looks like the price of natural gas will be somewhat lower this winter than it was last winter. But that is largely because prices last winter were at record highs. Damage done by hurricanes to natural gas production facilities in the Gulf of Mexico last fall significantly reduced the supply of natural gas, driving the up the price. However, the weather last winter was also much warmer than normal.

The rigid design of the RETRAX ? improves the aerodynamics of your pickup. Input from our customers and our own experience indicates that your gas mileage should improve by approximately 10% on the highway with the cover closed.

Mileage is very dependant on the driving conditions involved. Is the road in the mountains, or on the freeway? Is it raining or windy? How many people are in the vehicle? As a general rule we tell people that the Class C units get around 10 miles per gallon on the freeway and 8 miles per gallon in the mountains. From there factor in weather, number of people and speed. The Class C units all have a 55 gallon gas tank so your range on a tank is around 450-500 miles.