I used to run Royal Purple in my cars. The UOA for my first car (Mazda RX-8) was pretty damned good. It did, however, cause my car to blow blue smoke (I was catless). I thought it was just a rotary thing.
Swapped over to Rotella for my second car (MazdaSpeed6). Also pretty good if I used the diesel formula.
Currently in my Honda I just run Castrol synthetic. I spent a week doing UOA research, and found them to be most suited to the S2000.
What I've learned from all this is that different cars, different brands. Not exactly sure why though...
Swapped over to Rotella for my second car (MazdaSpeed6). Also pretty good if I used the diesel formula.
Currently in my Honda I just run Castrol synthetic. I spent a week doing UOA research, and found them to be most suited to the S2000.
What I've learned from all this is that different cars, different brands. Not exactly sure why though...
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