This was really weird. My wife and I are moving from New York to Colorado right now. I'm towing our snowmobile and the car (2002, stock) is performing great. Towing is no problem - and I was surprised that engine temp hasn't fluctuated even the slightest. Total load after cargo and trailer is probably close to the Subaru max - 2,000 lbs.
Today we were in South Dakota. Running about 75mph, 5th gear. Terrible gas mileage with a headwind. 106 degrees out. Car running good but burning a ton of gas. I had filled up at Phillips but was burning gas faster than previous tanks (the headwind, etc had me down to about 12 mpg). With just under 1/4 tank left all the sudden the car lurched a few times and lost power and I had to pull over. No lights came on - nothing. So I checked the oil - added about 1/2 Q of Amsoil (it needed some) and then started it up. This time the low gas light game on - I got about another 2 miles and it totally died.
Wife drove me to BP - I got a 2 gallon tank and got the car to the station. But when I got there I only put in 11.5 gallons. Add the two I put in (that's 13.5) and I should have room for 2 more if I was totally out. Can't figure the whole thing out. Wondering about vapor lock since it was so hot out. I slowed down a bit and started running 4th gear more. Hopefully tomorrow's trip will be better.
Any theories on this? Overall I'm very very impressed at how well the car has towed. My old Jeep and truck with heavy duty cooling would have risen in temp. The Subie didn't budge.