oil choice

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flmustang

New Member

Apr 22, 2008

1

0

0

Apr 22, 2008

#1

• Apr 22, 2008

• #1

i got a new 5.0 motor for my 1990 mustang and i want to use ams oil synthetic. what viscocity is recomended for a street / strip car. the motor is all stock, port polished E7 heads and gt40 intake. Is there anything i can do to prevent the rear main seal to start leaking, because i know its coming.

 

88mouse

New Member

Apr 18, 2007

630

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0

Mooresville nc

Apr 22, 2008

#2

• Apr 22, 2008

• #2

If its a fresh rebuild you don't want to run synthetic in it. You need to break it in on reagular motor oil.

 

squeak93

15 Year Member

Jun 2, 2005

2,291

373

164

Joplin, Missouri

Apr 22, 2008

#3

• Apr 22, 2008

• #3

Rotella.....

 

samickguy15

Member

Sep 1, 2005

404

0

16

Delavan, IL

Apr 22, 2008

#4

• Apr 22, 2008

• #4

Diesel oil AKA Rotella (per squeak93) is very good break in oil. IIRC, one of the major cam manf. reccomends using it...

 

bynummustang

Seen my other Jackstand?

Jul 24, 2005

1

2

69

NC State University

Apr 22, 2008

#5

• Apr 22, 2008

• #5

Don't run synthetic until everything is broken in, and all seals are set.

 

WHITE94COBRA

New Member

Nov 14, 2003

816

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0

HUNTINGTON BEACH

Apr 22, 2008

#6

• Apr 22, 2008

• #6

Regular dino oil for break in, really any regular oil will do, lower viscosity obviously. I personally stay away from pennzoil

 

Bullitt347

I have been doing it wrong this whole time

15 Year Member

Mar 23, 2007

3,988

2,968

194

Middle of Maine

Apr 22, 2008

#7

• Apr 22, 2008

• #7

WHITE94COBRA said:

Regular dino oil for break in, really any regular oil will do, lower viscosity obviously. I personally stay away from pennzoil

Click to expand...

+1

 

D

dtlionsfan

Member

Nov 12, 2005

83

0

16

Apr 22, 2008

#8

• Apr 22, 2008

• #8

Valvoline max life synthetic in 10w30 after break in.

 

Fast63

New Member

Sep 20, 2007

717

0

0

Apr 23, 2008

#9

• Apr 23, 2008

• #9

crane cams is the company that recommends diesel oil for break-in. They recommend a couple brands, Delo-400 being one of them. I just used the Delo-400 to break in my solid flat tappet 347, and it broke it great without any problems. I have actually heard that it's best to run the diesel oil all the time, and that's what I plan on doing. It's 15W-40, but my engine is setup with loose bearing clearances, so it's a good idea for me anyway. Costs a lot more, but worth it IMO.

 

onefstsnake

New Member

Nov 25, 2005

792

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Northern VA

Apr 23, 2008

#10

• Apr 23, 2008

• #10

Hell I ran Castrol GTX for 2 years and this year ive been using Mobil 1 Full Syn.

I have always used the Mobil 1 filters, bigger and heavier than almost anything out there lol

I did buy a couple cases of Valvoline VR-1 though.

 

1

1982matthew

New Member

Mar 14, 2008

42

0

0

Easton,Pa

Apr 23, 2008

#11

• Apr 23, 2008

• #11

I've been using Castrol GTX in all my vehicles for many years and never had an oil problem and never heard of anyone ever having a problem because of it so I will continue with it. In a motor that is new or has a bunch of money in it I would have to recommend Synthetic Oil though w/ Motor Craft filter. Does anyone run synthetic oil with lucas ?

 

Shakerhood

20+ Year Stangneter

Oct 28, 2004

3,359

209

114

Ohio

Apr 25, 2008

#12

• Apr 25, 2008

• #12

Fast63 said:

crane cams is the company that recommends diesel oil for break-in. They recommend a couple brands, Delo-400 being one of them. I just used the Delo-400 to break in my solid flat tappet 347, and it broke it great without any problems. I have actually heard that it's best to run the diesel oil all the time, and that's what I plan on doing. It's 15W-40, but my engine is setup with loose bearing clearances, so it's a good idea for me anyway. Costs a lot more, but worth it IMO.

Click to expand...

My G/F just bought a brand new Jetta, I was reading through the Owners Manual and it actually calls for 5W-40 Diesel Oil even though it is gas powered.

 

mustangfan1990

New Member

Jul 17, 2005

505

1

0

Lenoir, North Carolina

Apr 25, 2008

#13

• Apr 25, 2008

• #13

ummmm Mobil Full sys. no question is the best oil. BUT I have heard good things about AMS oil

 

1

1982matthew

New Member

Mar 14, 2008

42

0

0

Easton,Pa

Apr 25, 2008

#14

• Apr 25, 2008

• #14

Car company's are just trying to use best oil possible to put a higher mile per gallon tag on car's with gas prices so high, that is one of the main points a customer looks at when buying a new car today.

 

Shakerhood

20+ Year Stangneter

Oct 28, 2004

3,359

209

114

Ohio

Apr 26, 2008

#15

• Apr 26, 2008

• #15

mustangfan1990 said:

ummmm Mobil Full sys. no question is the best oil. BUT I have heard good things about AMS oil

Click to expand...

Mobil 1 is not even a True Synthetic anymore!

 

hollywoodstang

Active Member

May 23, 2006

1,095

2

36

Apr 26, 2008

#16

• Apr 26, 2008

• #16

WHAT?!

 

Shakerhood

20+ Year Stangneter

Oct 28, 2004

3,359

209

114

Ohio

Apr 26, 2008

#17

• Apr 26, 2008

• #17

hollywoodstang said:

WHAT?!

Click to expand...

They changed their Formula a few years back, you can Google it and find numerous discussions, here is one. Its seems like all Companies are constantly cutting quality for money.

http://www.fatwallet.com/t/18/742332

 

hollywoodstang

Active Member

May 23, 2006

1,095

2

36

Apr 27, 2008

#18

• Apr 27, 2008

• #18

That blows. so i am going back to quakerstate Synthetic

 

90blacknight

Member

Apr 11, 2006

136

0

18

Apr 27, 2008

#19

• Apr 27, 2008

• #19

I just switched to Valvoline full synthetic. Anybody have any experience with this oil?

 

Grn92LX

Fidanza Man!

Founding Member

Jan 14, 2001

6,819

64

129

New York

Apr 27, 2008

#20

• Apr 27, 2008

• #20

90blacknight said:

I just switched to Valvoline full synthetic. Anybody have any experience with this oil?

Click to expand...

Its a group 3 oil like castrol syntec, mobil 1 and pennzoil platnium. It will be fine, they're still better than regular oil. I personally run mobil 1 in both of my cars, 0W40 Euro formula in the Audi and 10W30 in the Mustang.