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I know this has probably been beaten to death but that was before my time. I'm pretty new to this whole deal (but doing quite well on my 67 Fastback) and have a quick question.

My 67 has the oil and filter still in it from the previous owner (probably no more than 5 minutes running time since though). I know it's been sitting around though as when I siphoned the gas and put it in my 98 Rodeo, it ran like junk.

I'm looking to change the oil and filter today. What is the best grade oil for it? I'm in Houston and it will get hot in a few months.

Also, should I put some Marvel Mystery Oil in it? I have a new bottle sitting around and would like to use it if need be. Same goes for the gas... I just put in a brand new tank. Should I add some carb cleaner and MMO to that 1st fill-up as well?

Thanks!

-Aaron
 

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Any name brand oil will do for now...5W30 (colder weather) to 10W40 (warmer climates) will be an adequate choice. Avoid the synthetic oils for now until the engine has been worked over well, as that oil can bypass old worn seals and gaskets.

http://clubs.hemmings.com/baymustang/platesmall.jpgLet me check your shorts! My multimeter is just a-waiting! Formerly known as Midlife in the old VMF.
King of the Old Farts *struts*
 

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All the Vintage owners manuals call for 10W40..I use it year round

'59 T-Bird..[color:blue]'70 Mustang Convert</font color=blue>...[color:green]'72 Mach One</font color=green>
http://clubs.hemmings.com/baymustang/t-bird.jpg
The Black Bird At 42,she's the oldest in my Ford stable
 

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Any good quality multigrade oil is fine. I have used Ford New Holland 5 - 40 in my 68 GT500 (only drive it in the summer, live in Canada) since restoration in 1988, dropped the pan this winter to check inside, perfectly clean in there.

68 GT500
68 1/2 CJ Coupe

MCA# 18519
 

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The biggest secret is to change the oil regularly!

http://albums.photopoint.com/j/View?u=1575962&a=11982331&p=43165927.jpg67 Sports Sprint, Convert. Original C code, now 293 ci with Holley 450 and 295,000 miles
MCA #49294
 
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