About Our Oil
Ideal for * Vintage * Restored * Collector * Cars and Trucks
Collector Automobile Motor Oil
What you should know.
CAMO has been designed to meet the unique demand of vintage, preserved, restored and classic automobile engines. The oil contains preservatives to keep oil on the engine components even when the car is stored and not run frequently. It has a high concentration of ZDDP to protect valve-train components. The oil is formulated with detergents and dispersants to help keep your engine clean. Ideal for collector cars and great for “newer” muscle cars, street rods and older cars currently on the road. High-grade viscosity modifiers included in the formula do not significantly degrade with time and temperature. Provides adequate preservative detergents, dirt-catching dispersant and higher ZDDP concentrations to reduce engine wear, especially in the area of camshaft lobe to lifter friction.
What is ZDDP?
The most common anti-wear additives used in engines are zinc dialkyldithiophosphates (ZDDP). ZDDP has been used successfully for over 60 years, and to date no superior anti-wear additive has been developed for use on steel. ZDDP has an excellent track record at protecting the sliding metal-to-metal cam lifter interface. The film of zinc and phosphorus so formed provides a sacrificial wear surface protecting the base metal of the cam and lifter from wear. In the course of normal service, the conversion of ZDDP to elemental zinc and phosphorus depletes the ZDDP level in the oil. Studies show that depending on the specific engine and severity of duty, after 2000-4000 miles of operation, the level of ZDDP can drop below that considered adequate wear protection to the cam and lifters.
What has taken place.
As part of an effort to reduce vehicle emissions, the U.S. EPA offers vehicle manufacturers “credits” for early implementation as well as penalties for violation of emission reduction standards. The EPA’s program called for 100,000-mile catalytic converter life by 2004, 120,000 miles by 2007, and 150,000 miles by 2009. To achieve these goals, automotive manufactures pressured their oil suppliers to remove substances from motor oils that would shorten the service life, including the proven anti-wear additive ZDDP (Zinc dialkyldithiophosphate). Zinc and phosphorus from the ZDDP can be present in small amounts in the exhaust gas of an engine depending on the amount of oil which is consumed in combustion. Phosphorus in particular has been singled out as an element which can coat the catalyst reducing the amount of catalyst exposed to the exhaust gases and ultimately increasing emissions at the tailpipe. As a result of the EPA mandate, he phosphate level in engine oils (from the ZDDP) has been declining since the introduction of SJ oils in 1996.
Why we need these additives.
The SM category of motor oil has 600 to 800 ppm (parts per million) ZDDP. CJ-4 in the new motor oil category for diesel engines and this has reduced ZDDP as well. The reduction in the ZDDP concentration, unfortunately, can increase the engine friction and wear in our antique and classic cars. With reports that are currently available motor oils with the API-SM designation can cause extreme engine wear by many changes in the formulation of this oil.
Collector Automobile Motor Oil
Is sold as 15W 40 multi-grade viscosity for two reasons:
It is thinner at start up and therefore flows more quickly to wear points.
It is SAE40 at 212 degrees Fahrenheit and higher (engine-operating temperatures) and the viscosity does not decrease at higher temperatures as much as a single grade SAE40.
COLLECTOR AUTOMOBILE MOTOR OIL: Due to the change in cost for oil, please check the price with your local retailer.
For differences between types of vehicle oils click here
For additional information on our oil and ZDDP please click here and here
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