hi, my name is XXXXX XXXXX I will help you .
if you still have that cutting oil in the motors ,I wouldnt drive it anymore ,cutting oil is not for vehicle motors and will harm the motor .
cutting oils usually have water ,sulfur etc.
plus cutting oil is much thinner than motor oil -thus the ticking you hear and the smoking.
here is a site to explain the properties more -http://its.fvtc.edu/machshop1/coolant/cutfluids.htm.
if I were you you can remove the oil and put in the motor oil ,but I believe the damage is already done and may not solve the issues that you have
document anything from this shop and you may have to get new motors for both these vehicles ....as time goes on further damage may show up
I am sure that this shop has insurance and you may have to sue them
as I said this cutting oil may contain water or other chemicals that will definately hurt the motor ..thank you ...jazzmaster ..