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Jfloyd1112

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Hey everyone! I’m new to the page have some questions about the 5.7 hemi. I am thinking about trading my 2019 silverado just because the DI “direction injection” makes me nervous since it has a lot of carbon build up issues. Does anyone know if the 5.7 hemi is Direct injection? I Appreciate everyone’s time.
 

jdefoe0424

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None of the Hemi's are direct injection. I think some of that depends on the engine. For instance, some BMW engines were known for needing a cleaning every 60k and then there are others that go 150k without any issues.

Sent from my Moto Z (2) using Tapatalk
 

UnloosedChewtoy

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Some DI engines are better designed than others. Some are designed to take better care of the carbon than others.

Regardless, the Hemis are not direct injected (DI).
 

Wsmith

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I traded a 15 Silverado DI in at 68K, I know that's not huge mileage, but no issues whatsoever.
 

mikeru82

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We're in the clear as far as the Hemi goes. As already stated, it's not a gasoline direct injection engine. Even so, I'm running a catch can on my Laramie because we are still susceptible to intake runner carbon build-up. The port injectors do a fine job of keeping the intake valves clean, but do nothing for the upper intake ports and intake plenum. A catch can will reduce the amount of oil and fuel vapors that the pcv system might otherwise introduce into the intake. I might be worried about a non-issue, but I already had a quality catch can from a previous vehicle so I figured why not.
 

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