Quote:
Originally Posted by Newell Attack
Hi Guy's,
Question.... After having a new Jake Brake installed I have seen a decrease of mileage (hand calculated of course) with new jake my averages are 5.8 to 6.2. Prior to new jake I was averageing 6.5 to 7.5 Does my newly installed Jake brake effect my fuel mileage?
I do notice that when the Jake is engaged, there will be a bit of unburned fuel coming from the exhaust that
I can only see at night time when there are headlights shinning from behind.
Thanks in advance,
Newell Attack
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It is my opinion that there will always be a small amount of unburned fuel. There is always enough fuel from the injectors to maintain engine idle speed even with the Jakes engaged. Since the Jakes are opening the exhaust valves, this fuel is not burned and would appear as unburned fuel in your exhaust.
Again this is just my opinion