That could explain the bit of lag in the
oil temp reading on my 67 GTX. I hollowed out an
oil pan drain plug and mounted the sender in it for the electrical gage (bottom of pan). It does take a bit of driving to get the
oil up to temp but after awhile it's up to 180 - 195 thereabouts which should be close to water temp from gage and IR gun readings. But it's only 6 quarts capacity compared to the Cobra's 8 quarts so they seem to warm up at about the same rate overall.