RE: [ercoupe-tech] Engine Oil

[Ralph Finch]

Not a petroleum engineer. 
 
But look in your owner's manual for your Coupe....it probably advises 80wt
oil.  Not 100wt.  However, until recently the 80wt oils had no
anti-corrosion additives, so I used a multi-weight oil with the additives.
 
But now Shell makes an 80wt oil with its package of anti-corrosion
additives.  I've switched to this.  It's the correct weight oil and should
help the engine resist corrosion better than an untreated oil.  Plus I use
CamGuard too.  Why try to save a few bucks with your engine oil?
 
Ralph Finch