3. Properly Inflated Tires
Tire pressure is not just a safety issue, but a big help in fuel efficiency. When renting an RV this will/ should be checked before your departure by the rental company. Be sure to ask what is ideal pressure so you can keep an eye on the tires and if they seem low add more air. If just one tire is under inflated by 2 PSI, it increases fuel consumption by 1%.
4. Less Air Conditioning
A running air conditioner puts extra load on an engine and this causes more fuel to be used. This can increase fuel consumption by about 20%. Note: the defrost setting on most vehicles also runs through the air conditioner.
5. Close the Windows
Open windows will increase the drag on the vehicle and can decrease fuel efficiency by about 10%; there is more drag with increased speed.
6. Regularly Scheduled Service
Different things such as dirty air filters, old spark plugs, and low fluid levels all attribute to lower fuel efficiency. This can be remedied by making sure your tow vehicle or RV have been through the proper maintenance.
7. Cruise Control is a Gas Saving Do
Maintaining a constant speed for a long distance will help to save gas.
8. Avoid Idling for Long Periods
Some people will leave a vehicle running if they don’t plan to be in one place for a long time. If you plan to be there for more than one minute it is better to shut off the engine. Some people have come to believe that re-starting a vehicle will use more fuel than idling, but in actuality it takes less.