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Discussion Starter · #1 ·
Hi just a quick question
I've heard that thicker oil running in the 5.7 with MDS can make it function un properly. I live in southern NM and it gets hot here I'd like to run something heavier during the summer months. Any thoughts ?

2010 R/T
A5
CAI
Cat back exhaust

Thanks!


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Run what the recommended. They did all kinds of hot weather testing trust me. Oil weight is much more crucial in modern engines especially with the mds.
 
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