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20w/50 or 15w/50

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  #1  
Old 07-19-2007, 03:49 PM
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Default 20w/50 or 15w/50

Is this too high for a Disco II with low miles? If so, reasons why? Will it clog or make it difficult for the pickup tube to work properly?
 
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Old 07-19-2007, 04:26 PM
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Default RE: 20w/50 or 15w/50

Nevermind, did some more research....not a good idea.
 
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Old 07-20-2007, 07:08 AM
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Default RE: 20w/50 or 15w/50

So you found that a thicker motor oil would not flow as fast,
and that newer motor are put together with tighter tolerance and the thicker oil
would not lube all of the motor parts and you would get premature wear.

My last two vehicles one used a 5w30 new and at 150K I was still using it, my truck had 220K
and stayed with 10w30 from day one.
My Disco I 10w40 summer 5w40 winter.

The only time you may want a thicker oil is when the motor has wear, not seals leaking
but metal ware.
 
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Old 07-20-2007, 03:51 PM
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Default RE: 20w/50 or 15w/50

10W/30 oe 190W/40 is as heavy as you need to go if you live in the hotter areas other wise a 5W/30 is great. Trick is get the best oil and filter you can buy and change the oil every 3000 miles.
Mike
 
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Old 07-20-2007, 04:56 PM
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Default RE: 20w/50 or 15w/50

ORIGINAL: Disco Mike

10W/30 oe 190W/40 is as heavy as you need to go if you live in the hotter areas other wise a 5W/30 is great. Trick is get the best oil and filter you can buy and change the oil every 3000 miles.
Mike
I'm assuming you meant 10W/40 instead of 190W/40! [sm=jawdrop.gif]
 
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Old 07-20-2007, 05:29 PM
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Default RE: 20w/50 or 15w/50

I was thinking of just installing grease zerks all over......
 
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  #7  
Old 07-20-2007, 08:01 PM
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Default RE: 20w/50 or 15w/50

okdiscoguy,
What weight RP are you running?
 
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Old 07-20-2007, 08:19 PM
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Default RE: 20w/50 or 15w/50

YES more Royal Purple users. Just switched and that stuff is AWESOME. I use 10w30.
 
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Old 07-20-2007, 09:21 PM
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Default RE: 20w/50 or 15w/50

ORIGINAL: Newfoundlandrover

okdiscoguy,
What weight RP are you running?
a mixture of assembly lube and 85W140.....

Not really.. 10W30. I ran 10W40 this spring and had a lifter tick. I drained it and put the 30 back in. Sounds like new...
 
  #10  
Old 07-20-2007, 09:32 PM
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Default RE: 20w/50 or 15w/50

ORIGINAL: scottagnew101

YES more Royal Purple users. Just switched and that stuff is AWESOME. I use 10w30.
I can get you a deal on some. My brother just moved to Charlotte and sells it. I think it will be around $68 a case. Also, have you changed your diffs and transfer case yet? That's where I got the biggest improvement...

Had to edit and say the price is for motor oil, not gear oil, it's higher. If you want a quote, let me know..

[IMG]local://upfiles/5440/2631DCDC5C734305BC38D8F8758DA10F.jpg[/IMG]
 
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