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Old 01-28-2016, 09:48 PM   #6
clarkkent
 
Drives: 2013 2SS (sold)
Join Date: Jan 2016
Location: Seattle, WA
Posts: 602
Quote:
Originally Posted by Nessal View Post
Is her engine a direct injection engine? If so, not surprised. Has nothing to do with the gas.


Just looked it up. Yup not the gas fault. This is a known problem with direct injection engines. VW has some literature on this and people over at vwvortex has documented this through and through. This is a very common problem. In fact, her car is one of the worst and most known.

http://www.autoguide.com/auto-news/2...-engines-.html

Do a Google search, it's all over the web.
Yup and BMW 335ci's are notorious for this as well. Unfortunately it is the easiest way for an engine to have 1) better throttle response 2) more horsepower and 3) better gas mileage. It's like the holy grail. Except, after 20k miles, you have to get your valves and runners sandblasted (with corn or shells or something).

So, Chevy's new LT1's (C7 Corvettes, 2016 Camaro SS) and LT4's (C7 ZO6) have direct cylinder fuel injection. We'll have to see if Chevy found a way to keep this from happening.

In a direct cylinder injection engine, it is way WAY more critical to have a catch can or something to keep oil particles from entering the intake manifold/intake runners. Because no matter what fuel cleaner you put in, it won't do anything at all but clean your fuel lines and injectors, won't do anything for the valves or intake runners.
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