Watch the car

In time, change the consumables and check the wheels
Particular attention should be paid to the air filter, the condition of which affects the fuel consumption. Check the wheel alignment and maintain the correct tire pressure - both moments increase the resistance when driving, and with it the flow.

Insulate the engine
In winter, a lot of fuel is spent on warming up the engine, so it makes sense to attend to its warming with a special blanket.

Perform minor repairs yourself
You can generally refer to specialists only in serious situations, and minor repairs like replacing the candles, oil or a burnt out light bulb perform independently. On forums and YouTube it's easy to find detailed information and, having spent a little time, do it yourself.