Engine Oil

Lucas Oil Products, Inc.

Engine Oil

Lucas 4-Stroke Marine Engine Oil SAE 25W-40 is designed to improve wear protection and increase catalyst life in newer inboards using catalytic converters. Meets or exceeds NMMA® FC-W (CAT) performance.

Lucas Extreme Duty Marine ATF is a blend of specific synthetic base oils and a special Lucas additive package designed to create a high friction fluid that allows shifting clutches in the transmission to lock up and engage quickly.

Lucas Extreme Duty Marine SAE 20W-50 Engine Oil is designed for use in high performance boats requiring the ultimate protection.

Lucas Extreme Duty Marine Semi Synthetic 20W-50 Engine Oil is designed for use in high performance boats requiring the ultimate protection.

Lucas Synthetic SAE 10W-30 Outboard Engine Oil is formulated especially for the harsh conditions of high speed watercrafts.

Lucas Synthetic SAE 10W-40 Outboard Engine Oil is formulated especially for the harsh conditions of high speed watercrafts.

Craig Michelson uses Lucas Heavy Duty Oil Stabilizer for 1942 M-7 Priest Sherman Tank

My name is Craig Michelson and I am the curator and vehicle maintenance coordinator for American Heritage Park in South El Monte, California. We have over 140 vehicles from World War I to present. The museum has in its inventory a 1942 M-7 Priest which is basically a Sherman tank with the top cut off and a 105mm gun installed. This particular vehicle has a nine cylinder, 975 cubic inch aircraft style radial engine.

Before starting radial engines the motor has to be hand turned to make sure the bottom cylinders do not fill with oil and cause a hydrostatic lock.

About a month ago we used Lucas Oil Stabilizer in our last oil change. This morning the mechanics turned the engine with the hand crank and noticed it started with less effort. After it started there was less smoke coming out of the engine during the warm-up. This is proof to me that your product does what it claims to do.

Craig Michelson


El Monte, California

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