1950s vintage oil vs modern oil test

[toyotafan]

This was really in interesting. Watch the end.

 

[kennythewelder]

Quaker state has always sludged up an engine, as well as Penzoil, Castor oil. This seems to be worse in hot climates, or that has been what I have seem first hand.

 

[toyotafan]

I'd like to see an unbiased review of all modern motor oils.

 

[Kesh]

Quaker state has always sludged up an engine, as well as Penzoil, Castor oil. This seems to be worse in hot climates, or that has been what I have seem first hand.

Hey I have had the same issue, but since I switched to mobile it's been good