I recently was reviewing the service manual for my '65 M20C and they have a whole laundry list of lubricates and grease that they recommend.  This got be to thinking about what today's products translate to these 40+ year old recommendations?  I'm assuming with the quality of today's products, do we need to have this many of unique products or can they be combined? Here's the list of the MM: Low Temperature Oil (General Purpose) MIL-L-7870 MIL-G-7711 or MIL-G-81322 Grease Grease (H