The Ford Barn - View Single Post - Like picking at a scab: let's discuss 'oil'

WHN · 10-19-2018, 11:57 AM

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I have a Model A with an engine that was rebuilt in the 60’s that we have owned for 40 years. We use Walmart 20w-50 HD oil, change every 500 miles or once a year. Also add one bottle of blue STP as last half quart. MMO used in gas.

Having said that. For the first twenty years that we owned our 29 and for the 20 plus years before that. We used 40 weight non detergent oil with STP in any Model A that we owned.

Engines much quieter after switching to the high detergent oil. Aside from noise, I don’t believe the cars new the difference.

10-19-2018, 11:57 AM	#6
WHN Senior Member Join Date: Mar 2017 Location: Connecticut Shoreline Posts: 1,824	Re: Like picking at a scab: let's discuss 'oil' Sponsored Links (Register now to hide all advertisements) I have a Model A with an engine that was rebuilt in the 60’s that we have owned for 40 years. We use Walmart 20w-50 HD oil, change every 500 miles or once a year. Also add one bottle of blue STP as last half quart. MMO used in gas. Having said that. For the first twenty years that we owned our 29 and for the 20 plus years before that. We used 40 weight non detergent oil with STP in any Model A that we owned. Engines much quieter after switching to the high detergent oil. Aside from noise, I don’t believe the cars new the difference.