DIN = SAE x 0.63
DIN = IEC x 0,87
Distilled water, which is required to top up the battery, can be replaced with water obtained by melting ice build-up from the freezer compartment of the refrigerator. Before pouring into the battery, water must be boiled for 10-15 minutes and filtered through a paper filter.
Use the same size, model and construction of tire on the same axle.
Never mix new and used tires on the same axle.
Synthetic oils widely used in aviation and rocket technology (usually painted red) it is strictly forbidden to use in automotive equipment! When aerospace lubricants interact with automotive elastomers, immediate destruction of seals, gaskets and gaskets occurs.
You cannot mix different types of motor oils - synthetic, mineral and semi-synthetic. Mixing synthetic motor oils from different manufacturers is especially dangerous, since in this case not only the additives but also the base oils can enter into a chemical reaction with unpredictable results when mixed (often deplorable) result!
Due to the fundamental differences in the properties and chemical composition of automatic transmission oils and the characteristics of classic motor/transmission oils, it is prohibited to replace these oils with each other.
Never "nursing" on one fill of engine oil longer than the period recommended by the car manufacturer (even if it's synthetic)! If your car is used in difficult conditions (urban cycle, frequent start-stop, dusty roads, long driving in low gears, etc.), change your engine oil twice as often as recommended by your car manufacturer! And don't forget to change the oil filter!
If it is very cold outside, do not apply the handbrake even briefly: the brake shoes may freeze to the drums and you will not be able to move.