Clean Informer Magazine Summer 2013 | Page 33

air, it is best to use a cold inflation pressure. A cold inflation pressure is the tire pressure on a vehicle that has not been moving or moving less than one mile and out of the sun for at least an hour. It is not recommended to check the tire pressures when the tires are hot. When a tire is driven over the mile mark it is considered hot, and tire pressures are normally increased at this point. Tires may increase in pressure over the cold specification when hot. Never bleed air from a hot tire. A hot tire that is below a known set cold psi or the cold psi specification, could be significantly low and may need to be filled. At least once a month check all the tires with a gauge. Always apply the same air pressure for every tire unless otherwise specified by the vehicle manufacturer. Rotating tires is another important part of tire maintenance. Rotate the tires every 5,000 miles unless otherwise suggested by the vehicle or tire manufacturer. Refer to the owner’s manual or allow a professional service center to perform the proper rotation method for the specific vehicle. Proper tire inflation and maintenance are critical to a vehicle’s performance and helps keep you and your passengers safe. Engine oil needs to be checked on a daily basis. With the engine off and vehicle is on level ground, pull the dipstick out and wipe it with a clean towel. Put the dipstick back in the tube, making sure it seats all the way in the tube. Pull it out once again and look at the level on the stick. If the oil level is between the low and full marks it is considered an acceptable level for operation. If the oil level appears to be at or below the low mark, then oil needs to be added to the crankcase filler tube. Always be careful not to overfill engine oil. Overfilling engine oil can be more harmful than low engine oil. Engine oil and filter needs to be changed every 3,000 miles or every 3 months. Newer vehicle owners are now being instructed to change engine oil every 5,000 miles or every 5 months. If the carpet company chooses to allow a service center to perform the oil change it is of utmost importance to check the oil level before leaving the service center and make certain the oil level on the dipstick is not above the full mark. If the oil level is above the full mark oil must be drained adequately to obtain the proper level. The owner of the vehicle must stand their ground on this matter and not allow ignorant service people to push them out the door as many service centers do. This matter is detrimental and must not be ignored. Serious harm to the engine and loss of revenue upon correction can occur if the engine oil is filled too high. Engine coolant / anti-freeze levels in the reservoir should be checked when the engine is cold once a week. Each vehicle has different reservoir markers. Refer to the owner’s manual of your vehicle for the 33