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oil ?

Posts: 123
Joined: 06/09
Posted: 03/26/13 08:04 AM

What is the best weight and brand of oil to run in a 65 (289) auto with a four barrel. I have been running g-oil lately its a full sin but I am wondering what is best for myustang .         Thanks for any and all input  

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Bill T.
Posts: 283
Joined: 04/08
Posted: 03/28/13 08:01 AM

You need oil with the zinc additive in it to keep from wearing out the camshaft.  Castrol Edge Syntex formulated for older cars is good.  Newer engines with roller lifters don't need the zinc additive so most oil no longer has enough in it for older engines.  

1966 coupe
1995 Cobra R

Post Reply
Posts: 342
Joined: 11/09
Posted: 03/28/13 05:23 PM

Other thing is use diesel oil as it still has zinc in it. Zinc was removed from the oils because it was plugging up the cats.  

Post Reply
Posts: 259
Joined: 08/11
Posted: 03/29/13 07:41 AM

You can also purchase zinc additive to use with your regular or synthetic oil as well. Most auto parts stores will carry it. Otherwise, look for oil that has it in the formula, like diesel oil, Rotella, muscle car oil, etc.

Mark Houlahan
Brand Manager
Mustang Monthly Magazine

1965 FFR Roadster 427W/TKO-600 5-speed
1966 Mustang 289-4V/C4 Auto
1968 Mustang 4.6L Three-Valve/5R55S Auto
1990 Mustang 306/AOD
2002 Explorer Sport Trac 4.0L V-6/5R55 Auto
2005 F-150 4x2 4.2L V-6/4R70W Auto

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Posts: 123
Joined: 06/09
Posted: 04/16/13 01:27 PM

I am using g oil and I have had great luck so far but has anyone used zmaxx additive   in their classic mustang and if yoxu have what has your experience been ? Good/bad etc.        Thanks again all  

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