gripit

What kind of oil do you run in your older cigs? I have 1988 420 HP engines and I run Valvoline Racing 50 weight with a quart of Lucas oil stabilizer. I use Wix filters!
What do you run?

Biggus

iTrader: (1)

This is just from my own experience. I've found that if you are running thermostats,(oil and water) 40 wt oil is fine for your application. I feel that 50 wt is too thick and causes extreme distributor gear ware.

I do not run a water thermostat, therefore I feel that 40 wt is just too thick to be pumping through the motors, especially when cold. I've had good luck with Pennzoil 20/50 and change it every 10 hrs (blower motors) Fram HP-4 filters.

Kurt

Pwrbt33

iTrader: (2)

I tell ya, Mercury has good oil and we use Valvoline 20w50 racing oil in some of the engines I have built. When we tear them done to do fresh ups or for more power, all the gear inside looks great. Piston skirt wear is very minimal.

Pwrbt33- John S.
Offshore Performance
410-827-0200

CignificantOther

Always use Mobil 20w50 in my natural engines and Mobil 1 synthetic in the Blower motors. Both products work fine with or without stats. I would save the $ in your application and run the regular Mobil.

Baldwin racing filters No. B279