91 octane premium required, ANY advantage to use 93?
#1
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2011 ML550
91 octane premium required, ANY advantage to use 93?
Here in MA, 91 and 93 octane are both regularly available. Is there ANY benefit whatsoever to use 93 octane?
Thoughts?
Thoughts?
#2
Senior Member
Try it. Some engines are tuned a little conservatively and will respond to a higher octane fuel. Others won't. Only one way to find out! (You won't do the engine any harm by experimenting.)
BTW, almost any turbocharged engine works better on higher octance gas, but unless you have somehow gotten hold of a new twin-turbo 550 you may or may not notice a difference.
BTW, almost any turbocharged engine works better on higher octance gas, but unless you have somehow gotten hold of a new twin-turbo 550 you may or may not notice a difference.
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2004 Volvo XC70; 2012 GLK 350 4matic
Here in Texas we only get 93. 93 has worked flawlessly for 3 vehicles rated for 91 octane minimum. One has to wonder how accurate the pump numbers are in the first place. I reckon that using 93 octane will hopefully guarantee 91 octane minimum.
Wayne
Wayne
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W164 ML500,SMART For two,1994 C280(5speed manual) 1999 C230k station wagon
I always use 93 but I have a tune as well, even before my tune it seemed that the engine ran smoother and free'er (is that a word?) with 93.