white stuff in oil
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Elder User
Joined: Oct 2001
Posts: 671
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From: virginia beach
white stuff in oil
Hey, I changed my oil about a month ago, and when I looked at it today tehre was some underneath the truck, its a white milky substance. When I check the dipstick its also in there. Im using castrol 20w 50. The truck has pretty much sat the whole month but it was started every other day or so. Thanks..
Senior User
Joined: Jul 2003
Posts: 204
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From: Montana
White in the oil is usually water. Look at all your spark plugs. If one or more are unusual color, may have a head gasket leak, do a compression test.
Water leak into oil could be intake manifold gasket, corroded intake water passage, head gasket, cracked block or heads.
Could be a stuck pvc valve, not pulling moisture out of crankcase. Use carb cleaner (I like gumout) clean the valve real well by spraying cleaner in both ends of pvc valve. When shaking valve back and forth you should hear a rattle sound if valve is clean.
Could try putting in a bottle of cooling system stop leak. Prestone product works well. I put half a bottle in my car radiator 2 years ago (almost 60k miles) and still have not bothered to remove the radiator to fix it.
If you have a serious leak like a cracked block, Bordens condensed milk will seal it up for a while. You can have water running out of a cracked block and Bordens will seal it up. It also plugs up everything else, so only use if its time to sell.
Water leak into oil could be intake manifold gasket, corroded intake water passage, head gasket, cracked block or heads.
Could be a stuck pvc valve, not pulling moisture out of crankcase. Use carb cleaner (I like gumout) clean the valve real well by spraying cleaner in both ends of pvc valve. When shaking valve back and forth you should hear a rattle sound if valve is clean.
Could try putting in a bottle of cooling system stop leak. Prestone product works well. I put half a bottle in my car radiator 2 years ago (almost 60k miles) and still have not bothered to remove the radiator to fix it.
If you have a serious leak like a cracked block, Bordens condensed milk will seal it up for a while. You can have water running out of a cracked block and Bordens will seal it up. It also plugs up everything else, so only use if its time to sell.
New User
Joined: Jan 2008
Posts: 0
Likes: 24
Most of the time it is caused by too many short trips where the engine doesn't reach its normal operating temperature.
It shows up :
on the dipstick
On the PCV valve
On the oil filler cap or breather
What happens ?
The parts get cold <> the engine runs for 15-20 minutes & gets shut-off only to just get warm <>
this may happen
*Hour after hour*
*day after day*
*week after week*
The Fix ?
Stop making short trips and bring the engine to proper operating temp when you do drive it.
It shows up :
on the dipstick
On the PCV valve
On the oil filler cap or breather
What happens ?
The parts get cold <> the engine runs for 15-20 minutes & gets shut-off only to just get warm <>
this may happen
*Hour after hour*
*day after day*
*week after week*
The Fix ?
Stop making short trips and bring the engine to proper operating temp when you do drive it.
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