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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech

owner's manual says 5w-30 or 10w-30?

  • Thread starter Thread starter clarkjr
  • Start date Start date Nov 9, 2005
C

clarkjr

Founding Member
Oct 22, 2000
716
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19
NC
Nov 9, 2005
#1
  • Nov 9, 2005
  • #1
Just curious what the book says for the 94/95.
 

94-302-vert

Active Member
Aug 16, 2004
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36
NE CT
Nov 10, 2005
#2
  • Nov 10, 2005
  • #2
10-4... oops I meant 10w30. Or at least I read that somewhere because that is what I use in my car. I think I read it in my Haynes manual.
 
G

Green 94 5.0

Founding Member
Mar 25, 2002
2,601
12
79
Ft. Lauderdale, FL
Nov 10, 2005
#3
  • Nov 10, 2005
  • #3
i have always used motorcraft 10w30. never had any issues.
 

bjl95mustang

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Jan 18, 2000
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Austin,TX
Nov 10, 2005
#4
  • Nov 10, 2005
  • #4
run atleast 10-30 with a high mile 5.0.
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
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129
Nov 10, 2005
#5
  • Nov 10, 2005
  • #5
i am with Brandon.

But you asked what the book says, and it probably says 5W-30 for colder climates (temps under freezing) and 10W-30 at all other times.
 

urban96

bubb rubb says:"woo woooooo"
Founding Member
Sep 24, 2002
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Syracuse, NY
Nov 10, 2005
#6
  • Nov 10, 2005
  • #6
mobile 10w-30
 
V

VetteEater

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Sep 13, 2004
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EARTH
Nov 10, 2005
#7
  • Nov 10, 2005
  • #7
Just for clarificatation when you say "use atleast 10w-30" do you mean no higher than 10W-30 or lower? I only run Mobil 1 Synthetic 10W-30 in my car.
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
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129
Nov 10, 2005
#8
  • Nov 10, 2005
  • #8
VetteEater said:
Just for clarificatation when you say "use atleast 10w-30" do you mean no higher than 10W-30 or lower?
Click to expand...
He means an oil of atleast that viscosity or numerically larger (i.e. 10W-40, 15W-50, etc). The tolerances in a motor with some miles on it are not as tight as they once were, ergo the motor can handle a more viscous (thicker) oil.
 

mo_dingo

20+ Year Stangneter
Aug 26, 2003
3,031
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Tucson, AZ
Nov 10, 2005
#9
  • Nov 10, 2005
  • #9
Temperature is the only thing you should consider when considering your oil weight. In AZ at my work, we have only 20w-50 because of the heat.

But if you are in a much colder climate, you should run 10w30 or even 5w30 for really cold climates.
Scott
 
I

igotyofire

Member
Feb 26, 2004
774
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19
Southern California
Nov 11, 2005
#10
  • Nov 11, 2005
  • #10
mo_dingo said:
Temperature is the only thing you should consider when considering your oil weight. In AZ at my work, we have only 20w-50 because of the heat.

But if you are in a much colder climate, you should run 10w30 or even 5w30 for really cold climates.
Scott
Click to expand...

i say temperature and mileage......why single out the other, many people take mileage into consideration and it makes perfect sense as a motor ages ...things wear and tear. but most importantly temperature is important depending on what enviroment your engine startups are in,hehe
 

Blackened302

Active Member
Jul 21, 2005
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South TX
Nov 11, 2005
#11
  • Nov 11, 2005
  • #11
mo_dingo said:
Temperature is the only thing you should consider when considering your oil weight. In AZ at my work, we have only 20w-50 because of the heat.

But if you are in a much colder climate, you should run 10w30 or even 5w30 for really cold climates.
Scott
Click to expand...
:Word:
 

Blackened302

Active Member
Jul 21, 2005
1,439
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36
South TX
Nov 11, 2005
#12
  • Nov 11, 2005
  • #12
igotyofire said:
i say temperature and mileage......why single out the other, many people take mileage into consideration and it makes perfect sense as a motor ages ...things wear and tear. but most importantly temperature is important depending on what enviroment your engine startups are in,hehe
Click to expand...
:Word:
 

mo_dingo

20+ Year Stangneter
Aug 26, 2003
3,031
2
58
Tucson, AZ
Nov 11, 2005
#13
  • Nov 11, 2005
  • #13
igotyofire said:
i say temperature and mileage......why single out the other, many people take mileage into consideration and it makes perfect sense as a motor ages ...things wear and tear. but most importantly temperature is important depending on what enviroment your engine startups are in,hehe
Click to expand...

What does the mileage of a motor have to do with the weight of your oil? It's temperature dependant, mileage is irrelevant.

If your motor is old and tired, leaks at the valve or whatever, you could use gear oil and it will still leak.
Scott
 
9

95cobradude

Banned
Apr 1, 2005
194
0
0
long island, ny
Nov 11, 2005
#14
  • Nov 11, 2005
  • #14
gear oil, lol. i use royal purple 10w30, nothing better.
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
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129
Nov 11, 2005
#15
  • Nov 11, 2005
  • #15
When motors have some miles on them, the tolerances open up a bit. Having thicker oil helps maintain pressure.

The only thing that matters is that one should run the lowest weight oil that maintains decent pressure in all situations. If you guys want a kick, read about what weights of oil are common in Australia. Then note that some of the motors which use this weight are the SAME motors we have here.

Recommendations are based upon more than just what is best for the motor (CAFE standards, etc).
 
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