Reply To: 1926 series 80

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Most of us use 20w-50 motor oil, or 20w-40. Straight 40 works as well.

The oil pressure will be high, over 60-80psi when the engine and oil are cold. Once warmed up, the engine will idle with from 0-5psi indicated and around 25 psi at 30-40mph.

The transmission and rear axle use 600W, available from most Ford parts dealers.. But 90w-140 will work, but it may leak past the old-style seals [felt washers].

The Pierce filter on the firewall can be made from stacked felt discs, or I think Jack Combs has a replacement filter element.

Greg Long