[chizzle1]

I am having a difficult time locating 5w-20 full synthetic.
Would 0w-40 offer the same protection?
This is on a non-MDS 5.7
The wife's Dart takes 0w-20 for increased mpg, I don't see why dodge wants to run such thin oil in their engines.

 

[bad8nti]

Both Advance Auto and AutoZone carry various brands of Full Synthetic in that weight. I work at Advance and we carry Valvoline Full Syn, Castrol Edge, Pennzoil Platinum, Quaker State Full Synthetic, Royal Purple and our own Advance Auto brand in that 5W-20 weight. I would not use anything other than 5W-20 in a 5.7.

 

[chizzle1]

I was thinking that perhaps the 0w40 is slightly thicker, and might provide better protection during the Texas heat.

 

[Dodgeguy]

I was thinking that perhaps the 0w40 is slightly thicker, and might provide better protection during the Texas heat.

Read this thread. http://www.challengerforumz.com/showthread.php?t=102699

 

[chizzle1]

Read this thread. http://www.challengerforumz.com/showthread.php?t=102699

thanks :smileup: I didn't think about the cam phaser or the oil solenoid.
Guess I will be ordering some 5w20.

 

[ply67cuda]

Also - some of the oil galleys and passages are very fine and a heavier weight oil may not penetrate or it might be viscous enough to actually clog a small passage.

 

[kilo1]

Funny I see this now but was reading this just a few minutes ago.
http://www.dragzine.com/tech-stories/engine/late-model-lubrication-should-you-run-higher-viscosity-oil/

 

[Rajunz]

http://www.walmart.com/ip/Mobil-1-5W-20-Motor-Oil-5qt/17018132

 

[chizzle1]

http://www.walmart.com/ip/Mobil-1-5W-20-Motor-Oil-5qt/17018132

holy shit that's cheap. thanks :smileup:

 

[ply67cuda]

Funny I see this now but was reading this just a few minutes ago.
http://www.dragzine.com/tech-storie...rication-should-you-run-higher-viscosity-oil/

Great article! The only thing it left me wondering was how can one determine which brands of oils are more shear stable at high load than others. Have you run across anything that has that info?

also found this - good info...
http://www.bobistheoilguy.com/oilshear.htm