Greetings,
I am considering purchase of a 2017 Lexus GS350. It has a 3.5 liter V6 with Direct Injection. This will be my first vehicle with Direct Injection. I've been told the approach Lexus took with Direct Injection in this engine is that it is in fact a combination of direct injection and port injection. I assume this approach was taken, possibly in part, to avoid the build up of carbon/deposits on intake valves. Incidentally, this engine requires premium gas.
I am considering moving away from using one of my favorite engine oils, Amsoil signature series in this vehicle because it has a very high amount of calcium-based additives. Instead, I would move back to Mobil 1, with its combination of magnesium/calcium combination additive package. My thinking is that Mobil 1's additive package approach might be better suited to engines with Direct Injection. I suspect Mobil's approach means a lower amount of sulphated ash, which I have heard is a characteristic beneficial to engines with Direct Injection.
Comments? Am I correct or is my thinking incorrect?
I am considering purchase of a 2017 Lexus GS350. It has a 3.5 liter V6 with Direct Injection. This will be my first vehicle with Direct Injection. I've been told the approach Lexus took with Direct Injection in this engine is that it is in fact a combination of direct injection and port injection. I assume this approach was taken, possibly in part, to avoid the build up of carbon/deposits on intake valves. Incidentally, this engine requires premium gas.
I am considering moving away from using one of my favorite engine oils, Amsoil signature series in this vehicle because it has a very high amount of calcium-based additives. Instead, I would move back to Mobil 1, with its combination of magnesium/calcium combination additive package. My thinking is that Mobil 1's additive package approach might be better suited to engines with Direct Injection. I suspect Mobil's approach means a lower amount of sulphated ash, which I have heard is a characteristic beneficial to engines with Direct Injection.
Comments? Am I correct or is my thinking incorrect?