A aviator37 Junior Member May 26, 2017 #21 My various charts show ISO 1000 to be in the SAE 250 range.
Special Coupe Frank Well-known member May 26, 2017 #22 EP (Extreme Pressure) lubricants should not be needed in a Model A. They are essential for Hypoid rear-ends, which were developed later-on. Model A just has spiral-bevel in the rear. Straight-cut spur-gears in the ******.
EP (Extreme Pressure) lubricants should not be needed in a Model A. They are essential for Hypoid rear-ends, which were developed later-on. Model A just has spiral-bevel in the rear. Straight-cut spur-gears in the ******.