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Old 04-02-2014, 09:00 PM   #1
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Synthetic oil

I am considering changing over to a synthetic oil like mobil 1 or pennsoil
or Castrol synthetic motor oil. has anyone changed over to synthetic oil and would u recommend it? I just feel like I wont have to change my oil
in the motorhome as often with the synthetic oil. any other benefits or
advantages? I know its more expensive but if I don't have to change it
as often it might be beneficial? any comments or opinions are greatly
appreciated?
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Old 04-02-2014, 09:13 PM   #2
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What coach do you have and what drice train?

With my ISL 400 cummins says don't do it, not benifical. Only do the rear end!
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Old 04-03-2014, 01:18 PM   #3
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I have a ford v10 on f53 chassis. its a 1999 seaview. thanks
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Old 04-03-2014, 04:43 PM   #4
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I always ran the recommended Motorcraft synthetic blend in my 1999 v10. The full synthetic is much more expensive and since I changed the oil regularly (annually or 5,000 miles whichever came first), I didn't see any benefit to synthetic. That said, It is generally recommended to follow the manufacturer's guidelines for oil change interval regardless of oil type. It is a high revving engine with tight tolerances. Keep in mind, the testing standards for synthetic oil is that it is at least as good as conventional oil...
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Old 04-03-2014, 04:58 PM   #5
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Quote:
Originally Posted by mr. seaview View Post
I am considering changing over to a synthetic oil like mobil 1 or pennsoil
or Castrol synthetic motor oil. has anyone changed over to synthetic oil and would u recommend it? I just feel like I wont have to change my oil
in the motorhome as often with the synthetic oil. any other benefits or
advantages? I know its more expensive but if I don't have to change it
as often it might be beneficial? any comments or opinions are greatly
appreciated?
Which motor?
What year?
Mileage per year?
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Old 04-03-2014, 10:56 PM   #6
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Mobile 1 in my 2001 Ford V10. PO had it on the Motorcraft semisynthetic. I use Mobile 1 in everything so for consistency put the Motorhome on it as well. Yearly changes regardless of miles if under 10 k. Either oil would be fine.
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Old 04-04-2014, 05:42 PM   #7
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I am using durablend (Syn/Dino mix) in the motor home because.. Well, that is what the dealer who does the oil changes stocks.

I like synthetics personally have used them in my cars for some time, Current car has Dino oil in it but that will change with the first oil change I pay for.
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Old 04-05-2014, 12:42 AM   #8
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I have a 1999 V-10 and I have switched to synthetic. The main reason being that synthetic doesn't break down with heat the way conventional oil does. Conventional oil becomes acidic with use which is why it is always suggested that you change your oil before putting it away for winter. That way, any acidic fluids are drained away and don't sit in your engine over a period of inactivity. I made the switch because my motorhome does sit idle for long periods even during the summer months. I have a large MH and my engine works hard and my reasoning is that even though it is between change intervals, some degradation is likely to have ocurred. I use it in my generator as well which can really go long periods between legit uses.
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Old 04-06-2014, 09:42 AM   #9
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Our 06 Dolphin came from the factory with full synthetic and I have continued using it. Ford did NOT extend change interval though it is still 6K or annual, which for us is the same.
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Old 04-12-2014, 05:13 PM   #10
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I use mobil 1 in everything I own, motorhome, auto, pickup, lawnmowers and rototiller.
5w30 in everything.
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