Where Customers Come First Since 1936

Fuel Gresham, Hillsboro & Portland, OR - Marc Nelson Oil Products

Industrial Oils for All Applications in Gresham, Hillsboro & Portland, Oregon (OR)

Marc Nelson Oil Products carries automatic transmission fluids to protect and extend the life of the transmission in your car. Transmission fluid provides the pressure to efficiently shift, lubricate and cool your transmission during operation. We carry a selection for all different types of automatic engines.

What does transmission fluid do?

Provides Hydraulic Power

The main function of transmission fluid is to provide the hydraulic (fluid) power used by an automatic transmission to perform its basic functions. All automatic transmission functions--gear changing, transmission engagement and disengagement, and downshifting--require the force provided by transmission fluid. Unlike manual transmissions, which use manually operated clutches, gear shifts, and linkages, an automatic transmission uses transmission fluid to operate those transmission components. Pressurized transmission fluid provides the physical force, or pressure, to perform automatic transmission functions.

Lubricates and Cools

As transmission fluid flows throughout an automatic transmission, it lubricates the transmission gears and bands and helps to keep transmission operating temperatures reduced. Just like an engine uses motor oil to lubricate and cool its inner parts, a transmission uses automatic transmission fluid to perform the same functions. Heat and friction are natural by-products of automatic transmission gear and band function; transmission fluid reduces heat and friction and ultimately increases automatic transmission life.

Collects in Transmission Pan

When a vehicle is not running and its automatic transmission is not in use, all the transmission fluid flows into the transmission pan, a square metal holding basin located directly underneath the car. The transmission pan is similar to a vehicle's oil pan. Both pans serve as nothing more than catch basins and reservoirs. When transmission fluid is added to a vehicle, the fluid is poured directly into the transmission dipstick, which funnels the fluid directly into the transmission pan. When a vehicle is started, the automatic transmission engages and all the stored automatic transmission fluid stored in the transmission pan begins to circulate throughout the entire transmission.


1977 Claxter Road NE, Salem, OR 97301 | 503.363.7676

© 2002 Marc Nelson Oil Products | All Rights Reserved

800.523.7676  •  503.363.7676  •  503.363.5822 (Fax)


Why Choose

Marc Nelson Oil Products?

We believe that the history, philosophy, product mix and success of Marc Nelson Oil Products should make your choice of petroleum distributors a simple one. Nowhere else will you find a match for our commitment to customer service, and from no other vendor will you find the mix of petroleum products, delivery methods and expertise that combine to make us the right choice, every time. Whether you're a large business running a fleet of a hundred vehicles, or a small shop with only one or two-if you use petroleum products to deliver services that meet your clients' needs, Marc Nelson Oil Products is the choice that will assure your success.

76 Lubricants
Phillips 66
VP Racing
Pacific Pride