Such troubles, however, can be minimized through regular oil changes which either can be accomplished at a Service station or at your home. If deciding to change the vehicle's oil yourself, but are unsure of procedures, there are numerous pamphlets available which describe proper techniques for changing a car's oil. If unable to acquire such advice or written material, the Arizona Department of Public Safety has some helpful hints. Most people don't realize that it is best to slightly warm the engine of the vehicle before pulling the drain plug. Heat thins oil and allows for a ready flow.
Cold oil is thick.
Consequently, some oil may remain in a cold engine. In order to get underneath the vehicle, a person may have to use a jack to lift the vehicle. If so, be sure to engage the parking brake, place an automatic transmission in park or a manual transmission in gear. Be sure to place blocks behind the rear tires to prevent rollback. Remember it is dangerous to work underneath a vehicle supported only by a jack.