Wayne--comment about temp rise in pump--compressing a liquid will give a temp rise just as a gas-temp gained equal to power to turn pump--I have taken out many high volume/pressure pumps from engines replaced with normal pump/pressure and there has been lower
oil temp and more power. And yes
oil does cool things
Kevin? The high pressure roller needle bearing oiling of the new type rollers don't work in these engines as there is no lifter
oil galley to supply pressure to the lifters.
Ernie--check your oil temp with a separate thermoneter--maybe a long meat style down the dipstick
Jerry