The type of driving you do, the climate in which you live, and the age of the vehicle, the manufacturers recommendations all have a bearing on the type of oil you should be using. An added factor in your car/truck's life and performance is related to how you handle the most routine aspect of any vehicle's maintenance - the frequency of oil changes or, more importantly THE TYPE OF OIL YOU USE! Yes it DOES make a difference! Only with AMSOIL can you extend drain intervals to 35,000 miles and also expect IMPROVED fuel economy.
The biggest responsibility of any oil is to form a layer between metal surfaces of various engine parts, in a transmission or in the differentials. This layer is what provides the lubrication characteristics of any oil. Oil serves as a sealant, filling the microscopic ridges and valleys found in any metal surface, increasing the engine's efficiency.
Oil must serve as a cleaning function, carrying away dirt or other debris which damages bearings or other parts which operate in tight tolerances. Debris is removed through the engine oil filter or the transmission filter. One of the benefits of Amsoil is that it is the "best cleaner there is" and as a result the longer you use the oil the CLEANER the engine becomes!
Oil uses detergent additives to combat combustion by-products. Burning gasoline (or diesel fuel) produces acids, moisture, soda, ash and other contaminants. The detergent fights these by-products, inhibiting their buildup as sludge, varnishes, etc.
Oil is a tremendous coolant. In the engine, the oil cools the underside of the pistons, valve springs, camshaft, rods, crankshaft and bearings. The oil picks up the heat from the combustion of fuel, as well as friction, and takes it away (no matter how good the oil may be, there is always friction). The volume of the oil in the crankcase helps transfer the heat, but where a car/truck is used in high temperature climates, for hauling trailers or heavy loads, an engine oil cooler is sometimes recommended. By using AMSOIL 100% Synthetic Oil the engine will remain COOL even in the harshest conditions. AMSOIL will cause the average engine to operate 30 degrees to 50 degrees cooler than normal!
Oil is the only coolant in your automatic transmission. There's a small radiator within the engine's radiator to take the heat away. When your vehicle is used in high temperature climates, hauling trailers or heavy loads, synthetic ATF is highly recommended. Again, Amsoil ATF will run MUCH COOLER than any conventional fluid and the oil itself will handle FAR MORE heat than any other oil!
When using Amsoil 10W-30 AMSOIL recommends that the oil be changed every 35,000 miles! If you are using the AMSOIL Oil Filter that should be changed every 12,000 miles and a quart of oil added to replace what was lost in the filter. Other change intervals are clearly marked on the container, usually 25,000 miles for gas engines. AMSOIL Oil Changes can be extended to 100,000 miles and beyond by using the AMSOIL Bypass Filter.
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