Hi everyone. I hope you guys can help me with an issue I am experiencing.
My car went in for a 100,000km service 2 weeks ago and the gearbox oil was replaced some sort of Penrite oil instead of the OEM Mazda oil.
Two weeks later, my Gen 1 MPS 3 developed a 'wong wong wong' noise at cruising speed. The sound is probably most obvious at 80-90 kph in 5th gear.
On some days, the noise would be quite noticeable but other days it's not that noticeable, so the noise is not exactly consistent. It sounds a little bit like busted wheel bearings.
Do you think most likely this noise has something to do with the new gearbox oil? Or is it something else?
I would really appreciate your feedback in this.
Thanks in advance!