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select · 09-12-2016, 05:53 PM

I think its because on partial load the exhaust gasses get fed back into the engine to increase the level of efficiency.
And with direct injection there is no petrol cleaning up the valves because it gets directly injected into the combustion chamber.

So to slow it down, you have to reduce the amount of partial load driving.
Easier said then done, i think.

Whether this can slow it down by a noticeable amount? I don't know, i guess you just have to accept to clean the engine every now and then as part of the maintenance.

Btw, i am not a car mechanic.. so may be someone can explain it in better detail.

09-12-2016, 05:53 PM	#8
select S5 - Full Throttle Join Date: Oct 2014 Location: Germany Posts: 475 Casino cash: $6813	I think its because on partial load the exhaust gasses get fed back into the engine to increase the level of efficiency. And with direct injection there is no petrol cleaning up the valves because it gets directly injected into the combustion chamber. So to slow it down, you have to reduce the amount of partial load driving. Easier said then done, i think. Whether this can slow it down by a noticeable amount? I don't know, i guess you just have to accept to clean the engine every now and then as part of the maintenance. Btw, i am not a car mechanic.. so may be someone can explain it in better detail. __________________ Greetings, Julian. Last edited by select; 09-12-2016 at 05:56 PM.