29-11-2020, 03:01 PM
Today, under the reassuring escort of another Austin 7, I drove my Arrow for it first "longer" drive. This car has a unmodified pressure fed "speedy" engine with the big sump so this was probably the fist time the oil had reached a good operating temperature. Oil pressure dropped from a good 30 PSI (cold) to under 20PSI (hot at cruising speeds). Is this a concern, not sure what is normal, or indeed if if the gauge is accurate!