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Old 08-18-2015, 03:09 PM   #1
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Engine Oil - Conventional / Synthetic

My Greyhawk is not yet due for it's first Oil change. But it will be by the end of the season. On average my trailer travels have been putting on about 6000-7500 miles per year. I don't expect that will change with the purchase of our Motorhome, at least not in the near future.

So my expectation is that Oil and filter changes will be part of my Winterization process. I am contemplating how to best protect and maintatin my engine during the winter storage months. I anticipate going up to the trailer to run the engine and generator once a month to keep everything lubricated.

My thoughts are that Synthetic Oil will be a worthwile investment for me but I am by no means an expert. My reasoning is this... If I want to run the engine in the winter with conventional Oil... I would need to put 5W-30 in the engine so it does not turn to sludge in the cold weather and then would need to change the oil again in the spring to handle the hot summer weather, particularily when we travel South and push through mountain passes. Whereas the Synthetic Oil will operate in both the freezing and hot temperature ranges. Also am I correct in my understanding that the Synthetic Oil is less prone to breakdown and therefore the once annual oil change should not be a problem where conventional should be changed on at least 6 month intervals.

Your thoughts and expertise are appreciated!!!
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Old 08-18-2015, 03:16 PM   #2
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I would only use 5W20 as is listed in the owners manual. The tolerances are very close and oil ports are smaller. There have been several reports of issues with the V-10 with the use of the heavier oils.

Also FORD'S oil is a semi-synthetic and that is all I ever used in our 2001 no matter what the outside temps.

Just my 2 cents.
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Old 08-18-2015, 03:42 PM   #3
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I use Amsoil 5W20 (synthetic) in all of my engines. It is rated for 25,000 miles or one year change intervals. Its a little more pricey but its worth it in the long run. Considering all other oil mileage and change intervals and published oil comparisons. Its rated the best.
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Old 08-18-2015, 03:43 PM   #4
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Agree. All I ever run in my Ford's is motorcraft 5w20 semi-synthetic.
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Old 08-18-2015, 04:23 PM   #5
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Quote:
Originally Posted by Griswald One View Post
My Greyhawk is not yet due for it's first Oil change. But it will be by the end of the season. On average my trailer travels have been putting on about 6000-7500 miles per year. I don't expect that will change with the purchase of our Motorhome, at least not in the near future.

So my expectation is that Oil and filter changes will be part of my Winterization process. I am contemplating how to best protect and maintatin my engine during the winter storage months. I anticipate going up to the trailer to run the engine and generator once a month to keep everything lubricated.

My thoughts are that Synthetic Oil will be a worthwile investment for me but I am by no means an expert. My reasoning is this... If I want to run the engine in the winter with conventional Oil... I would need to put 5W-30 in the engine so it does not turn to sludge in the cold weather and then would need to change the oil again in the spring to handle the hot summer weather, particularily when we travel South and push through mountain passes. Whereas the Synthetic Oil will operate in both the freezing and hot temperature ranges. Also am I correct in my understanding that the Synthetic Oil is less prone to breakdown and therefore the once annual oil change should not be a problem where conventional should be changed on at least 6 month intervals.

Your thoughts and expertise are appreciated!!!
You are talking about running it once a month up to the trailer to keep everything lubricated. Make sure that the engines come up to full operating temperatures and stay there for at least 15 minutes. The issue is condensation. If the trip isn't at least 1/2 hour long at normal speeds, I would be concerned with the system not getting hot enough to cook off any moisture that is made when cold metal gets warm but not hot.
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Old 08-18-2015, 04:23 PM   #6
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That makes my decision making simpler... and Cheaper

Thanks for the input!
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Old 08-18-2015, 04:24 PM   #7
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The new technology says synthetic is better so I have used full synthetic in my diesel since new and change every 10K. Reasoning 40K plus for a new F250 or do all I can to keep the paid for running strong.
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Old 08-18-2015, 04:29 PM   #8
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Winter maintenance

Quote:
Originally Posted by Ela1948 View Post
You are talking about running it once a month up to the trailer to keep everything lubricated. Make sure that the engines come up to full operating temperatures and stay there for at least 15 minutes. The issue is condensation. If the trip isn't at least 1/2 hour long at normal speeds, I would be concerned with the system not getting hot enough to cook off any moisture that is made when cold metal gets warm but not hot.
Once we are snowed in, taking it out on the road is not an option. I had anticipated an hour of run time, reality is for the generator the maintenance specs are 2 hours under load and the battery (Truck, not house) will need at least that hour I would think to keep the charge up over the winter. What would be your recommendation for winter maintenance of the engine parts?
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Old 08-18-2015, 05:07 PM   #9
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I personally wouldn't run the truck. Todays lubricants can easily maintain seals and bearings for long periods of inactivity. The chance of moisture issues stemming from not coming to full temperature would far out way the problems of not running the truck for extended periods of time. Running your generator is fine because you can bring it to temperature easily.
I would use a trickle charger on the batteries if shore power was available. Battery disconnects and battery chargers to top your batteries off if shore power was not available.
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Old 08-18-2015, 05:42 PM   #10
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I operated an orchard for about 20 years and had a full time employee that pruned trees and did other small jobs related to farming thru the winter months. I provided transportation in the form of an F250 Ford van. He would drive it out into the orchard every day and returned. Probably didn't add up to !/2 hr. daily. I changed the oil in the truck in Sept. that year. He drove it every day but not far. In February he complained that the transmission was acting funny. When I checked it, both dip sticks for both the engine and the transmission were way over full and milky in color. I drained the oil & fluid in both the engine and transmission. The engine survived. The transmission didn't. I had to put a rebuilt C6 automatic in the truck. After that, I made certain that the truck ran for at least !/2 hr at operating speeds every week!! Education comes in many forms!!!!
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