Callisto: You are talking about 2.5NA engine? or 2.5T? Thank you, Reuben

 

This is why I say that you can go to the bathroom, sit for a few minutes, and come out with a Neutron Bomb.

 

In that last response you are asking about it is not Turbocharged MAZDA. In my other responses on this thread, it applies to MAZDA specific Turbocharged, and none turbocharged engines and other platforms 4cyld. 2002 and newer Turbocharged Supercharged engines.

 

The first part of your response show and please don't take this as insulting, the lack of understanding about Turbocharged engines. So many think that a turbocharged engine is always boosting the engine.....if that were the case the MPG would be in the low teen all the time. In actuality the way the ECU and electrical and mechanical limiters and controller on a factory Turbocharged engine are set is for a linear boosting except under about 75%+ throttle angle and then the maximum set boost is allowed but only for a short period with a rapid decline to protect the engine.
Below is a slightly modified Turbocharged PT Cruiser with mechanical and ECU adjusted operating perimeter's. This PT does low 12's in the 1/4 mile and 0-60 in about 5 seconds. But even with some changes in the boost control you will notice the boost monitor going to full allowed and adjusted boos and then as the MPH and different high RPM reached starts to decline. Without the limits the engine would over boost and likely heat and blow the engine. It is the same with a MAZDA Turbocharged engine.


In the end its your vehicles and you can do whatever you want and use what-ever fuel in it you want.

ASE