2003-04 Mach 1 Registry Owners Club - View Single Post

Mustanger2 · 04-10-2011, 09:53 AM

In my new 2002 F150 5.4 I had to put 30w in it once due to not finding 20w. It knocked so bad on EVERY startup I was scared of major damage & even had a bystander ask what was wrong with my new truck! Sorry, my experience has been all the other way...only 20w for me.

I pull a 25ft trailer & work my engine hard! Lots of steep grades in Oregon Mt. passes and long pulls into Yosemite...I just hit 132k miles & all is well should I start to worry?

04-10-2011, 09:53 AM	#14
Mustanger2 Registered User Join Date: Jan 2004 Location: Grants Pass, Oregon Posts: 1,777	Re: Oil Viscosity for DOHC Ford In my new 2002 F150 5.4 I had to put 30w in it once due to not finding 20w. It knocked so bad on EVERY startup I was scared of major damage & even had a bystander ask what was wrong with my new truck! Sorry, my experience has been all the other way...only 20w for me. I pull a 25ft trailer & work my engine hard! Lots of steep grades in Oregon Mt. passes and long pulls into Yosemite...I just hit 132k miles & all is well should I start to worry? __________________ I drive a slow Mustang....but I drive it Slow....HARD!