Scorching Hot afternoon, at least 110F, black wagons like to get even hotter. Wife was passenger and we both needed cool so had the AC running hard (AC is custom with later model rotary and super oversized condenser). Headed north on Freeway-5 from Los Angeles up the Castaic uphill grade where big sign says "AVOID OVERHEATING TURN OFF AIR CONDITIONER NEXT 6 MILES". Too hot to obey the sign. Never drove with this much heat with AC up this grade but '84 240 wagon automatic has 352k miles, my failsafe workhorse car for 26 yrs. Saw lots of stalled cars and tow trucks on shoulder. Temperature gauge stayed below 10 o'clock with aux fan running. Engine simply quit 200ft before top of grade, no drama. Almost made it. I thought I heard it say "Thats it boss, this is too much, I need a break". Probably need to discuss this with my doctor but that belongs to a different forum. Luckily there was a shade tree. After a 30-minute rest by the side of the freeway, engine restarts and we get to continue our journey (with AC of course). Good to know that vapor lock can happen to this car, the better to prevent it from happening.

Btw, just finished a trip to Calgary and Jasper, 5k miles in 3 weeks, and did not ever need to add any oil. Same on another recent trip to NM and CO. Amazing gutless wonder. I havent posted here in about 10 yrs. My last post was when I lost brakes going down Bristlecone forest from 10k feet on a hot day. Fluid boiling points are lower at high elevation. Passenger was my girlfriend now wife.