Hyundai Elantra HD: Check battery and cables - Winter driving - Driving your vehicle - Hyundai Elantra HD 2006–2010 Owners ManualHyundai Elantra HD: Check battery and cables

Winter puts additional burdens on the battery system. Visually inspect the battery and cables as described in Section 7. The level of charge in your battery can be checked by an authorized Hyundai dealer or a service station.

Use high quality ethylene glycol coolant
Your vehicle is delivered with high quality ethylene glycol coolant in the cooling system. It is the only type of coolant that should be used because it helps prevent corrosion in the cooling syst ...

Change to "winter weight" oil if necessary
In some climates it is recommended that a lower viscosity "winter weight" oil be used during cold weather. See Section 9 for recommendations. If you aren't sure what weight oil you s ...