Stewart-see post # 13

 

cool man. then ones i have pulled look like that too. what a difference syn is to conv.. i ll be using syn on my new truck. after my free dealer oil change lol..

 

That's the case with Toyta/Lexus also, the side with the PCV is always dirtier...

Noticeable difference between the two trucks, the one with the dino oil isn't bad, just stained, but definitely not as clean as the OP's engine...looking forward for pics of the driver's side, I'll bet it's not too far off from the passenger side in this case, maybe just a little more stained....

 

any engine with proper maintenance intervals should look like that. It's not the type of oil, but the correct maintenance.

Back in the day (the 80's), my Mazda used dino oil (all I could afford then) and after 150k looked just as good.

 

Looks good man. Stuff tends to look better when taken care of.

 

on mine the passenger side was cleaner than yours with 178k, the drivers side was a little dirtier but still not too bad

 

Heres the drivers side. If anything looks as clean if not cleaner. heres pics.

 

damn man that's clean. my 08 5.3 valve cover wasnt even that clean and ive ran royal purple in it since i bought it. i have 45k on the clock. looks like i need to swap oils..
the heads was clean, just not the valve cover...wth?

 

Looks damn clean!

My old 4.8 with 193k wasn't much worse.

 

Clean clean clean