I have a 2014 eco and have towed a 23', 6K lb trailer and routinely average 15 mpg. I now tow a 25' 6.5K lb trailer and avg 14.5 mpg. I see pretty high oil (250 deg) and coolant (230 deg) temps when towing up hills, but usually comes right down when the hill is done. I'm told this is normal.
Yes, Within a few degrees of what I am experiencing. Dealer says this is within specs. I'm worried about another cracked oil cooler with these high temps.
2015 Eco. I tow a 23' travel trailer that is 5200lb dry and ~6000lb when we tow. My oil cooler cracked at 7500 miles. 3 weeks in the shop with new oil cooler and thermostat. Now at 12000 miles and just got back from a trip from San Diego to Monterey CA and back. Getting oil temp of 260 degrees...