Just needing to find out what oil I have to use on my Rx7 ???
Lew
People are very mixed on this, lots use mineral as its what Mazda recommended 25 yrs ago and some have switched to semi and fully synthetic.
I only sell fully syntetic double ester oils and several RX7\'s are running this happily.
http://www.rotaryart.uk.com/acatalog/Royal_Purple_motor_oils.html