You should make sure your car is in generally good condition, ensure all your lights work and that your tires are in good order as well as checking they're at the right pressure. It's also advised that you check your oil levels once a week to prevent excessive engine wear leading to eventual failure.
What about the oil's condition though? A simple dipstick check will reveal the level, and if the oil has gone black or milky then that's a pretty bad sign, but with the Lubricheck gadget you can inspect it much more accurately.
Lubricheck is a small tool that rates your vehicle's oil upon applying 4-5 drops onto the sensor. The oil is rated on a scale of 1 to 10. 1 to 7 are good, 8 or 9 recommends you change the oil soon and a 10 suggests you should change it right away, so it's simple to understand.
It can also check for contamination by water, metal or antifreeze so you get an advanced warning helping you prevent engine damage.
The side benefit to all this is that it also helps reduce unnecessary oil changes. Used oil is a particularly toxic substance to dispose of and whether mineral or synthetic, not the cleanest thing to produce either, so the less of it going to waste the better. Of course, the less frequently you need to change your oil, the less your wallet will suffer, too.
Want even more from your useful gadget? Well, the Lubricheck has an iPhone and Android App too, Lubritrack. Users can keep track of several vehicles and are given warnings when vehicles may require an oil change. You can also compare your oil usage with other users, if you're that way inclined.
Lubricheck should retail for $30. You can reserve yours on Lubricheck.com