ANYONE TRY ZMax?????
08-28-2009, 03:02 PM
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2010 GLK350 AWD 2008 C300 AWD (traded).
ANYONE TRY ZMax?????
My GLK gas mileage is not very good at 15 to 21. Zmax supposedly increases fuel mikeage. Anyone give it a try?
08-28-2009, 03:33 PM
#2
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15-21 seems normal for this type of a car. I get about 18mpg on average. Have no idea what zmax is, but I'm putting BP Ultimate and nothing else.
08-28-2009, 04:01 PM
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2013 GLK350 4matic
Don't use any of those additives, they can cause damage and provide no good...I would slightly change your driving habits, make sure tires are properly inflated etc...
this is a great website for reference
http://www.cleanmpg.com/forums/showthread.php?t=1510
this is a great website for reference
http://www.cleanmpg.com/forums/showthread.php?t=1510
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08-29-2009, 08:16 AM
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2012 C350 2DR Coupe
This is an SUV after all, albeit a small SUV with full time all wheel drive - most in this forum didn't buy the GLK for good fuel economy 
If that's your only complaint, you are in good shape...enjoy it!
If that's your only complaint, you are in good shape...enjoy it!
08-29-2009, 11:58 AM
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2010 steel grey GLK with lighting pkg
yeah I wouldn't add it...in the latest the star magazine (mercedes benz club of america magazine) they recommend that you do not add any additives like that to your engine.
