Oil weight question
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From: Humble, Texas
Oil weight question
Fella's my daughter has a 2004 F150 with a 4.6 V8. It calls for 5w 20. I've noticed that it will use about 1 qt in a two week period under normal driving. No leaks, no smoke but it has about 105,000 showing. (purchased used) Would it be a problem to try 5W 30 or 10W 30 to slow the consumption down? We are down in Texas so there are few days that get extremely cold.
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From: SE Texas
I'll probably get stoned for posting this, but I have been running Rotella T-6, 5W-40 in my 2005 5.4 for about 50,000 miles now. Much quieter. Like others have said, a PCV valve and a switch to 5W-30 should fix you right up!
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I absolutely agree, particularly if you don't do a lot of short trips`. I would even do 5w40 if almost all my driving were on the highway.
Car manufacturer's used to give a a range of oils to be used under particular conditions (e.g., ambient temperature, type of driving), and the hard parts of the engine haven't changed all that much between then and now. Besides, most of the 5w30 oils on the market are on the lower end of their respective viscosity range and will sheer down while in use.
Car manufacturer's used to give a a range of oils to be used under particular conditions (e.g., ambient temperature, type of driving), and the hard parts of the engine haven't changed all that much between then and now. Besides, most of the 5w30 oils on the market are on the lower end of their respective viscosity range and will sheer down while in use.
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From: Humble, Texas
Thanks for the info fellas. I have not given the PCV value a thought but I will replace it. The truck, to my knowledge, is driven under normal driving conditions, mostly commuting to work and community college. No towing or such. But my daughter is 19 and I'm trying to get her to realize that she has to be able to check some things, like the oil level, because I may not be around to do these things forever. Last time I checked it, it was 2 quarts low! Try to explain that importance to a girl! I think I will try a heavier weight just to see what happens. Thanks again for the input guys.
I'm a little ole school. Remember when on the back of the oil bottle it would give you a heat range? l Like if the vehicle was operated in a higher temp region you were safe with a heavier oil? That is what comes to mind for me. Are the engines of today that much different?
Thanks again.
PS I have a 1985 F150 4.9 inline six. It is not that picky. If it has oil, it will run!
I'm a little ole school. Remember when on the back of the oil bottle it would give you a heat range? l Like if the vehicle was operated in a higher temp region you were safe with a heavier oil? That is what comes to mind for me. Are the engines of today that much different?
Thanks again.
PS I have a 1985 F150 4.9 inline six. It is not that picky. If it has oil, it will run!
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lkenne12
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