Synthetic SAE 75W-90 M8 Marine Gear Oil

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Synthetic SAE 75W-90 M8 Marine Gear Oil

Lucas M8 Synthetic SAE 75W-90 Marine Gear Oil is a pure synthetic, non foaming, super slick, long lasting lubricant designed especially for marine applications. Originally designed for high powered off shore racing boats, M8 Marine Gear Oil contains seal conditioners and an exclusive blend of synthetic additives that protect from rust and wear caused by both fresh water and salt water during long periods of storage.

Excellent for use in any heavy duty / high performance stern drives, v-drives, gear boxes, wheel bearings and superchargers.

Key Benefits

  • Fortified with anti-foaming agents to prevent cavitation at high RPM's
  • Safely blends with all other known gear oils and additives
  • Protects against rust and moisture during long periods of storage
  • Provides rust and corrosion protection in both fresh water and salt water environments
  • Effective Water Resistance
  • Long Lasting
  • Resist Extreme Pressure
  • Extreme Friction Reducer


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  • #10652 - 1 Quart (Case of 12) - 25 lbs
  • #10664 - 5 Gallon Pail (1 Pail) - 40 lbs



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George Burback uses Lucas Oil Stabilizer in 1991 chevrolet k-2500

I puchased a high mialage 1991 chevrolet k-2500 (489,000) and put another 80,000 on it when the thermostat stuck shut in the middle of nowhere near Cheyenne Wy. the engine got so hot it siesed it melted the water hoses to there nipples I was lucky enough to get into a conoco quick stop before she froze up it just sat there a pinging an crackleing when I bought it I took it to jiffy lube to change the oil and I told them I wanted to put the lucas in it as I provided . They tryed to tell me how good there additive are but I persisted so the reluctantly complied any way every now and then I would try to turn it over the starter could only move it a notch but it still wasnt cooling in place after one and a half hoursthe engine made a complete timing to timing turn boy was I glade to see her coming back to life I pulled the upper neck bolts almost out been there and shure enough tharr she blew antafreeze all over it worried me some about cracking somthing it already melted and blew out the heat sensere but before it got hard Itook some pliers and pushed it back onto it's base it was still so hot I couldn't stay by it long. another hour and it started the valves were rattling and it was running rough but it was running took a screwdriver and fished the thermostat out and tightend the bolts down again then I poured hot water out of the conocos coffee maker in the resivor it sucked it down no smoke,no steam out the exaust wow two gallons of water no leeks and the het guage is working it's still hot but it's getting quieter so I filled up the jugs of water and headed for home near Burns Wy. 25 miles and I have to say I do believe it is the lucas that saved that engine whitch pops thru the manifold and doesn't have the power it used to have but she will go to town and back as I ask her to! thank You for helping me keep my big gocart alive P.S. it is a chevy hard as a rock and this one now rides like one again thank you George Burback

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