S2000 Under The Hood S2000 Technical and Mechanical discussions.

is this correct?

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Old Jun 9, 2007 | 08:31 AM
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gave my engine bay a quick rinse with some water today to wash off some degreaser. water (not degreaser) collected at my oil dipstick area and when i pull it dry, oil ran into my engine that way. will the water evaporate out? i only got a tablespoon (or less) in there... i'm not chemist so i have no idea. Thanks all~!
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Old Jun 9, 2007 | 08:42 AM
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Originally Posted by hey_i'm_new,Jun 9 2007, 08:31 AM
gave my engine bay a quick rinse with some water today to wash off some degreaser. water (not degreaser) collected at my oil dipstick area and when i pull it dry, oil ran into my engine that way. will the water evaporate out? i only got a tablespoon (or less) in there... i'm not chemist so i have no idea. Thanks all~!
It shouldent hurt anything, thats not much water. if its a worry, then change the oil
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Old Jun 9, 2007 | 09:07 AM
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better off changing the oil just to be safe but shouldnt harm anything
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Old Jun 9, 2007 | 11:18 AM
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well... that's what i initially thought. but when you change the oil, not ALL of the oil is removed. this leaves me to believe not all of the water will be removed either. i hope it evaporates, if possible.
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Old Jun 9, 2007 | 12:33 PM
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Water is heavier than oil. Therefore if you mixed a fair amount water into your oil,it will migrate toward the bottom of your oilpan. If it gets whipped up (from a running engine at high RPMs), it will likely mix with oil and turn into an emulsion. This emulsion would likely be dispersed in your oil as small droplets. If/when the engine gets hot from long highway drives, the water will vaporize and exit your engine through your PCV valve.

If you haven't recently changed your oil and you plan on a highway drive of about 40 minutes or more soon, I'd leave it alone. If you expect to make relatively short trips, lots of idling and city traffic driving, I'd warm up the engine and change your oil.

If you have over 3000 miles on your oil, I'd just change it out. Sulfur tends to accumulate in your oil (from your gas, products of combustion), which when mixed with water will form a dilute sulfuric acid. This will reduce the TBN of your oil (make it go bad quicker) and accelerate corrosion in your engine.
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Old Jun 9, 2007 | 01:47 PM
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Originally Posted by slalom44,Jun 9 2007, 12:33 PM
Water is heavier than oil. Therefore if you mixed a fair amount water into your oil,it will migrate toward the bottom of your oilpan. If it gets whipped up (from a running engine at high RPMs), it will likely mix with oil and turn into an emulsion. This emulsion would likely be dispersed in your oil as small droplets. If/when the engine gets hot from long highway drives, the water will vaporize and exit your engine through your PCV valve.

If you haven't recently changed your oil and you plan on a highway drive of about 40 minutes or more soon, I'd leave it alone. If you expect to make relatively short trips, lots of idling and city traffic driving, I'd warm up the engine and change your oil.

If you have over 3000 miles on your oil, I'd just change it out. Sulfur tends to accumulate in your oil (from your gas, products of combustion), which when mixed with water will form a dilute sulfuric acid. This will reduce the TBN of your oil (make it go bad quicker) and accelerate corrosion in your engine.
nice post...

unfortunately, i barely changed my oil last weekend ha~!. i'll just go driving for a bit then. i also read water was heavier than oil when i was trying to finalize a decision. just wanted to know if there was a way around another oil change, like evaporating. Thanks alot... i appreciate it~!
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Old Jun 9, 2007 | 02:22 PM
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Just go take the car for a spirited drive the enigne oil will heat up and the water will boil and exit the pcv, also a table spoon is nothing to worry about.
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Old Jun 9, 2007 | 02:49 PM
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$35K car < $25 for oil? Change it already. Better to be out $25 for oil than $5K for a motor. Cheap insurance. IMHO
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Old Jun 10, 2007 | 12:06 AM
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Originally Posted by Stratocaster,Jun 9 2007, 02:49 PM
$35K car < $25 for oil? Change it already. Better to be out $25 for oil than $5K for a motor. Cheap insurance. IMHO

agree


just for the peace of mind, you don't even need to change the filter so it's not even that much.
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