Try this web site at http://www.maintainyourcar.com
If you ask on the forums you will be sure to get an answer
They should help increase the fuel economy, it all depends on what model
What car do you have?
Replacing spark plugs can improve fuel efficiency, but the increase in miles per gallon (MPG) varies based on the vehicle's condition and the type of plugs used. Generally, new, high-quality spark plugs can enhance combustion efficiency, potentially improving MPG by about 1-2%. However, this improvement may be more significant in older vehicles with worn plugs. Regular maintenance, including spark plug replacement, contributes to overall engine performance and fuel economy.
yes it can
Full tune up will certainly improve gas mileage. plugs, wires, cap/rotor(if DIS, then doesn't have), fuel filter, air filter, pcv valve to name a few.
plugs at around 100,000 miles. blow out or replace the air filter. replace the fuel filter.
Changing spark plugs and wires on a 2004 Nissan Titan V8 can potentially increase fuel efficiency (mpg) if the old plugs and wires are worn or damaged. Fresh spark plugs ensure better combustion, while new wires improve the electrical connection, leading to more efficient engine performance. However, the extent of the improvement will depend on the overall condition of the vehicle and other factors like driving habits and maintenance. Regular maintenance is key to achieving optimal fuel efficiency.
Spark plugs, spark plug wires, air cleaner filter, oxygen sensor, fuel filter, and plenty of air in your tires.
Basically, not really, they are what they are. Engines were not build for fuel economy and alterations to that end are essentially an exercise in futility.
Swap out your stock ecu chip with a high performance one it can increase hp and mpg.
25 to 40mpg
There are many factors and way to increase the MPG in your Metro. Tire pressure, timing, spark plugs, air filter, fuel filter. I also found this place to be very helpful http://www.teamswift.net/viewtopic.php?t=17057
NO. It has NOTHING to do with the MPG.
unleaded