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As far as your downshift question.......this trans design is a bit harsh compared to units of the past.
It uses a control module that 'learns' your driving habits and takes almost 1000 miles to 'get to know your style'.

For the most part, it is the nature of the beast and of no concern.

Rob
 

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Premium Member
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Most of us running the 1.4t have found the engine performs best if 93 is used when ambient temp. is above 60 degrees.

Below that temp, the engine seems not to care what it is fueled with.
As a side benefit, in the above 60 temps, 93 generally helps you pick up several mpg.

From a longetivity standpoint only, the engine has aggressive knock sensors and the like to prevent damage from lower octane fuels......so octane used should have no effect on longetivity beyond shortening the cash in your wallet quicker.

Rob
 
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