Originally Posted By: CourierDriver
Life was easy once,,30 wgt for summer, 20 wgt for winter, never remember Dads cars blowing an engine...50s thru the 60s
I did that with Valvoline(20 winter-30 summer) in the latter 60s. And my engine didn't blow up either.
Ha no. Sucker born every minute. The Mitsubishi Evo guys that come in my shop have never mentioned this. Thankfully. Most of them run Redline, Amsoil or Royal Purple.
Originally Posted By: tig1
Originally Posted By: CourierDriver
Life was easy once,,30 wgt for summer, 20 wgt for winter, never remember Dads cars blowing an engine...50s thru the 60s
I did that with Valvoline(20 winter-30 summer) in the latter 60s. And my engine didn't blow up either.
Our 2010 F150 runs 5w20,,never an issue,,go figure