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66 289 mobil 1 oil

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giacomo:
I last changed my oil just over a year ago. I used castrol, don't remember what grade, and the car slightly smoked. So i changed for mobil 1 SOMETHING? and it ran great with no smoke and hardly any ticking. I don't remember what mobil grade i used. So, what Mobil oil should i use. 66 289 4 bbl rebuild in 2005 with no mods. Thank you

Soaring:
I use 10W30 Mobil 1 oil in my old 289. 

giacomo:
thanks!

mustangluver:
ive never had an issue with castrol. course i use castrol high mileage  ;D  think with your dipstick jimmy  :D

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