Originally Posted By: bruce381
""UOAs.""
I don't need no stinking UOA's LOL.
I make my own PCMO's but do Run RL off and on I get it (free) and all I can say is years ago I COOKED my Bronco (blown) rad hose in Fresno in the summer 100F+ ran it dry looking for a gas station for water.
Had RL 10/40 in it but dry motor started to sieze parked let it cool for a hour or so re filled water and fixed hose, crossed fingers and it started and ran for many years more with NO problem. Though it dropped a valve at 198K.
bruce
The one time I ran Redline in the Aerostar (got it $5 a quart AA clearance) was the time the heater hose blew and wife in hurry to get somewhere, we kept going another 8 miles of freeway. It was 5w20 Redline, but the weather was in the low 30s, which must have helped a lot. No evidence of any damage to engine after another couple years and 10 or 12 thousand more miles.
Note: While it is perfectly logical, you don't always think of it in the moment of blown hose "catastrophy," but once the water is out, the water temp gauge sensor is not submerged, and so is reading only hot air and will give rather normal readings. Had the gauge pegged I might have stopped sooner.