Try the Marlin website or eBay.
ownwers manual
in the ownwers manual
Get out the ownwers manual.
5w30 engine oil is recommended by ownwers manual, but 10w30 can be used if 5w30 is not available, but to change back to 5w30 at next oil change. Check you ownwers manual under Do it Yourself Maintenance.
instructions are in the ownwers manual.
Marlin 336 Owners Manual at Marlin Firearms website: http://www.marlinfirearms.com/pdfs/manuals/MFC_Centerfire.pdf
The Marlin Model 60 manual may be dowloaded from Marlin's website.
it's in your ownwers manual, or if you don't have that you can get a repair manual from Autozone.
Try contacting Marlin.
Marlin probably has one and most likely won't sell it to you.
Same as a 336 Marlin. Call Marlin at (203) 239-5621 and they will send you a free manual.
The maximum speed of the 1965 AMC Marlin coupe manual 6cyl 155hp is 110 mph.