I have a 1986 13B with 137,000 miles. When driving, the oil pressure is about 55 on the gague. But at idle, the pressure reads around 10-12. Is this normal?



Thanks in advance for any comments.

 

Your pressure @ idle seems low. Mine shows about 30 @ idle and 60 with any revs.

 

Your pressure at idle (at least on the stock guage) should read around 20-25 on average. The stock guage/sender are known to go bad though and give inaccurate readings. I have an Auto Meter electical on one of my cars that reads 25 psi at idle.