WHAT WEIGHT OIL ARE YOU RUNNING IN THE FE's - Ford Truck Enthusiasts Forums

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View Poll Results: WEIGHT OIL ARE YOU RUNNING IN THE FE's
5w20
2.12%
5w30
5.51%
5w40
2.54%
10w30
27.54%
10w40
21.19%
15w40
11.86%
15w50
2.12%
20w50
16.10%
30w
10.17%
50w
0.85%
Voters: 236. You may not vote on this poll

WHAT WEIGHT OIL ARE YOU RUNNING IN THE FE's

 
  #1  
Old 10-29-2004, 03:27 PM
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WHAT WEIGHT OIL ARE YOU RUNNING IN THE FE's

WEIGHT OIL ARE YOU RUNNING IN THE FE's.
 
  #2  
Old 10-29-2004, 04:17 PM
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Castrol GT+ 20w50

I can't even tell you why. but I've run it in just about everything I've touched in the last 15 years. (excluding my 2002 SS, it's on a synthetic diet).

Of course, I live in Central Texas...
 
  #3  
Old 10-29-2004, 04:47 PM
77fordguy
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10w40 and I live in Pittsburgh (the cheapest brand I can find)
 
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Old 10-29-2004, 04:54 PM
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Castrol 20-50. Going lighter in the winter. Probably a 10-30 or so.

-Scouder
 
  #5  
Old 10-29-2004, 05:57 PM
Chas1234
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10w40 I am in southeastern CT and and although it doesnt get that cold here it does get cold enough and hot in the summer .
I get 55 PSI hot running on the highway and 35 psi hot at idle .
USE THE FORD OIL FILTER !!!!!!!
 
  #6  
Old 10-29-2004, 06:43 PM
debestuss
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15W40 because Rusty said I should. Haven't put the motor back together again to see what oil pressure I'll have. FL1A oil filter.
 
  #7  
Old 10-29-2004, 09:11 PM
TheImpaler
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10w40. Not sure why. : )

From the poll, though, I think I'll be using 20w50 this time around.

We're finally cooling off here in AZ - what would be good for the 40-70degree range?

-Patrick
 
  #8  
Old 10-29-2004, 09:41 PM
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I'm using 10w30 in the 360 right now, but the new 390 will see nothing but 5w40 Shell Rotella T synthetic.
 
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Old 10-29-2004, 10:20 PM
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would 5w30 work ok in a 390 or should i use 10w30
 
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Old 10-29-2004, 10:23 PM
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I looked in your public profile, and in California I think 10w30 would be better, due to fewer viscosity index improvers.
 
  #11  
Old 10-29-2004, 11:28 PM
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10w40 in winter, 20w50 in summer, only in my FE 390 - NOT my modulars

Get around 80 PSI cold, whether I use 10w40 or 20w50, but get another 5lbs at hot idle with the 20w50, I usually get at least 25psi HOT HOT HOT with 10w40.
 
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Old 10-30-2004, 12:12 AM
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Castrol 20-50 because that is what my machinist told me to run with the clearances I have in my bottom end.
 
  #13  
Old 10-30-2004, 02:32 AM
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10-30 in the winter and 15-40 in the summer. Mystic oil for me.
 
  #14  
Old 10-30-2004, 10:50 AM
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When I rebuilt my FE, a mechanic friend of mine told me Castrol 10w-30 or 10w-40...said he'd never had an engine fail in cam break-in or otherwise with it. Doesn't get too cold here in the winter though.
 
  #15  
Old 10-31-2004, 12:42 AM
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10w40 Castrol. Flows when it's c-c-cold, doesn't thin as bad as others when it's hot: brand preference based on unscientific comparisons in an air cooled motorcycle engine run in 90 to 100 degree ambient.

When oil can get past the rings, I'll switch to synthetic for annual emmision testing.
 

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