Hello people,
wanting to tighten the cam covers and the old sump under the car to see if i can stop a minor leak of oil goodness.
now the question.
is it ok to spray degreaser around the cam cover and around the sump to clean up the oil? so spray degraser..leave for 10mins and wipe with cloth.
will degreaser upset the rings sealing the cam and sump?
also water dispersers sprays. when and where are they usefull?

thanks in advance folks!