|
Re: motor oils
Thinner oil flows better and gets better gas mileage. Modern engines have tighter clearances to work with thin oil, and they last way longer than 70's and older engines ever did. The engine in my '66 C10 was worn out and rebuilt at 136k, modern engines regularly go 300k+.
Thicker oil than necessary increases oil temps which in turn thins out the oil. Just use an oil with a strong enough film strength for the application, and thin enough to have enough pressure but not excessive pressure.
|