Mazda SELLS 5w30 "rotary oil" in Aus. for use in all of their rotary engines. I wouldn't worry about it. In fact I do my own changes and I'm using 5W30, synthetic no less! oooooh! SCAAARY :p

 

Uh-oh, is this gonna start another "synthetic vs. regular" debate? What have you done, Nubo?

 

Funny thing happened when my oil was changed at oaktree mazda in san jose california...Got home and checked the oil level and it was way passed the full marker....Took it back yesterday and also had them look at the krappy cd player skipping...The service manager called and said the tech checked the oil level and it was fine and that I must be reading the dipstick wrong...I say B.S. I checked the oil level at least five times and know he's covering his booty along with the service tech....Whe I pick it up tommorow he's going to "teach" me how to pull out the dipstick......I say fess up to the mistake and admit you guys fuc*** up!!!!!!
You can be darn sure I check the oil level before I drive off again....

 

Never beleive a service tech if it sounds fishy, always ask the guys who actually get their hands dirty.