[Strack]

Is 10W/50 engine oil available these days? What oil are most forum members using in their 71-81 spiders? Should synthetics be avoided for these vehicles? I don't think they would benefit much from the advanced chemistry and the potential for leaking seals is probably real....

 

[Zunige]

There are a lot of opinions and preferences regarding oils. I would encourage you to do a search, and perhaps post some questions in one of the existing discussions. To get you started, here are some threads which you may find informative:

• Motor oil with ZDDP (zinc) for flat tappet engines: synthetic vs. conventional
• changes in oil formulations and classic cars
• Oils currently available with high ZDDP content
• Castrol SynTech Oil Sale
• Shell 20W-50 vs. GTX
• Fall Oil Weight ???
• Mobil 1 Oil Comment
• AGIP Oil
• Oils & Zink additive, Comprehensive Listing

Best regards,

 

[Strack]

Thanks Enrique- lots of reading for a cold snowy night!