Here's my thoughts - They could be applied to any old car.
In these days of rising fuel prices (which over here in the UK are making me weep every time I fill up) it makes sense to do the easy things which help economy.
So in addition to making sure the car's fully tuned up and serviced with maximum tyre pressures (I run at 35 psi front, 32 psi rear):
- Fit an electronic ignition kit: you'll get better combustion, so more power when you need it, better mileage when you don't, plus better reliability and less need for periodic tune-ups as a bonus as this will eliminate points (which are mechanical and wear out).
- Fit two K&N air filter elements in your filter housing: These are around £60 for a set here but as replacement filters are about £25 delivered you'll save in the long run, plus this will help your mileage a little as your engine can now breathe slightly easier.
- Fit some trunking between the air collector panel next to the driver's side (on a UK / Aus car) headlamps and the air cleaner housing - This will ensure your engine is only breathing in cold, fresh air and not hot, under-bonnet air. This is denser and so wil give you slightly better power / economy at lower speeds.
- Fit an electric cooling fan - The standard fan is engine driven so isn't needed when the car is moving, yet it spins away. An electric one only cuts in when needed and will also reduce under-bonnet noise a little as well as helping mileage.
