Bubbles in oil? [IMPORTANT]
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Elder User
Joined: Apr 2010
Posts: 645
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From: Richlands, NC
Bubbles in oil? [IMPORTANT]
I got a little hint from a friend earlier today, and they said something about bubbles in the oil.
Without telling you guys what he said, I wanna know what you guys said.
When I went to check my dipstick, there were bubbles all over the dipstick..
What does that mean?
Without telling you guys what he said, I wanna know what you guys said.
When I went to check my dipstick, there were bubbles all over the dipstick..
What does that mean?
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Joined: Apr 2009
Posts: 2,001
Likes: 8
From: In the garage
Depends on the bubbles 
A few bubbles are normal.
Lots of little bubbles, overfilled and the crank is aerating the oil (easy enough to notice on your dipstick)
Muddy brown/chocolate milk bubbles, coolant in your oil.
A few bubbles are normal.
Lots of little bubbles, overfilled and the crank is aerating the oil (easy enough to notice on your dipstick)
Muddy brown/chocolate milk bubbles, coolant in your oil.
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Joined: Apr 2009
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Likes: 8
From: In the garage
If you're worried about gas in your oil, smell your oil. Simple enough 
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Elder User
Joined: Apr 2010
Posts: 645
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From: Richlands, NC
Okay... So... I don't need to worry about that.
However, gas in the oil could wear out the bearings, because I believe that my fuel pump is leaking into the oil... Which could wear out the bearings and lead to the engine seizing, correct?
So, bubbles in the oil or not, I have a gas leak and the suspect is the fuel pump leaking into the oil.
So, I need to replace the fuel pump, fuel filter, oil, and oil filter.
Correct?
However, gas in the oil could wear out the bearings, because I believe that my fuel pump is leaking into the oil... Which could wear out the bearings and lead to the engine seizing, correct?
So, bubbles in the oil or not, I have a gas leak and the suspect is the fuel pump leaking into the oil.
So, I need to replace the fuel pump, fuel filter, oil, and oil filter.
Correct?
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Joined: Nov 2007
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From: Denver Metro Area, CO
Paul,
I had a fuel pump leak into my engine, read about it here:
https://www.ford-trucks.com/forums/7...crankcase.html
I later disassembled my engine, pictures begin on Page 2 (I think); I really doubt the gas-oil
mix caused the bearing wear as my engine was never running for long enough but this will
show you what can happen:
https://www.ford-trucks.com/forums/7...ssageways.html
I had a fuel pump leak into my engine, read about it here:
https://www.ford-trucks.com/forums/7...crankcase.html
I later disassembled my engine, pictures begin on Page 2 (I think); I really doubt the gas-oil
mix caused the bearing wear as my engine was never running for long enough but this will
show you what can happen:
https://www.ford-trucks.com/forums/7...ssageways.html
Senior User
Joined: Dec 2010
Posts: 184
Likes: 1
From: Strasburg, Va.
wouldn't fumes from the breather tube from the air cleaner going into the valve cover where you pour oil in make the oil pick up the smell of gas?
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Joined: Apr 2009
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From: In the garage
If your oil is fuel fouled you will know it by smelling it. There is a huge difference from the byproduct and raw fuel being dumped into the oil.
