Can you please verify between Synthetic and Mineral?
royal purple
No. Oil cooled.
20-50w non synthetic
what type of oil can i use for my Mazda rx7
80w 90 gear oil
It is 5.8 Liters for an FC Rx7.
Usually as a rule only mineral oils . Not synthetics ALTHOUGH there are some which Mazda ok ! Royal purple is one BUT at over $40aud per litre I'll stick with the mineral oil. Till I win lotto lol
Sounds like you are getting engine compression in to your oil jacket.
iat sensor is not part of mass air on a rx7. the iat sensor is located on drivers side of engine below bypass air valve.near oil fill cap. two wire connector
shell 10w-40w
I have found the best directions ever for changing oil in both Mazda 3 2.0 and 2.3 models. Follow directions on this site (http://mazda3revolution.com/how-to-guides/how-to-change-oil-mazda-3-23-20/).
The most likely cause is a blown head gasket.