This is topic oil question?! in forum Tech Talk at Northern California Ford Owners  .


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Posted by 1CLeeN5.0 (Member # 2124) on :
 
i currently use royal purple synthetic 10w 30 on my 87 5.0 before i even get to 2500 miles my oil level is about a quart short. i drive normally and occationally go WOT. i heard that if you tend to go WOT all the time, basically have a heavy right foot that the correct oil to use on 5.0 is a 20w or a thicker oil. is this true and if not what could be the problem. mileage is only 67k thanks
 

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Posted by FasterDamnit (Member # 442) on :
 
That sounds fairly normal for a 5.0 w/ some miles. The thicker oil will slow it done some, but 5.0's use oil due to the forged pistons combined w/ light tension oil rings from the factory. Not to mention a PCV system that likes to suck the oil into the intake.
 

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Posted by PWR HNGRY 302 (Member # 6000) on :
 
Mine does the same thing with that same kind of oil, i guess it just happens, buy an extra quart next time thats what i do
 

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Posted by yohuallin (Member # 4452) on :
 
im a lube technitian, so oil changes is my life (unfortunally) on a 5.0 i wouldnt use any thicker than 10-30, 10-30 is thick enough for california weather, anything thicker, might give you some problems to start the car when is cold...
 

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Posted by blind (Member # 3052) on :
 
I run 20/50, zero problems
 

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