View Poll Results: Mobil 1, Royal Purple, or other?
Mobil 1
![](https://ls1tech.com/forums/images/polls/bar2-l.gif)
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55
48.25%
Royal Purple
![](https://ls1tech.com/forums/images/polls/bar3-l.gif)
![](https://ls1tech.com/forums/images/polls/bar3.gif)
![](https://ls1tech.com/forums/images/polls/bar3-r.gif)
![](https://ls1tech.com/forums/clear.gif)
28
24.56%
Other- Castrol Syntec, Ammsoil, Pennzoil, SuperTech, etc
![](https://ls1tech.com/forums/images/polls/bar4-l.gif)
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31
27.19%
Voters: 114. You may not vote on this poll
Royal Purple or Mobil 1 synthetic?
#45
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base your oil choices on wear numbers by having UOA's done and not on oil pressure, color, and/or how pretty the bottle is or isn't...lol Every car will be different and what oil works great for one car may not be the best choice for another. I will say that, based on UOA's, the LS1's seem to like the European spec stuff.....GC 0w30, Mobil 1 0w40, etc.
#46
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Originally Posted by jond99
The new poll for oil should be this:
Have you ever blown an engine because of your oil? If so, what brand.
No more "which is better"
How about which oil tastes better???![Barf](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_barf.gif)
Have you ever blown an engine because of your oil? If so, what brand.
No more "which is better"
![Punch](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_punch.gif)
How about which oil tastes better???
![Barf](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_barf.gif)
#50
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What do you guys think about a grade like 5W-50? I know my last oil change was done with that grade in the Mobile 1 Synthetic. Will it damage any parts? Frankly I don't think so but I want advice or people who know soemthing about that oil in LS1.
#51
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Originally Posted by JayErnie
What do you guys think about a grade like 5W-50? I know my last oil change was done with that grade in the Mobile 1 Synthetic. Will it damage any parts? Frankly I don't think so but I want advice or people who know soemthing about that oil in LS1.
run it for 3-4,000 miles and get a UOA done, that's the ONLY way you will know how -your- engine likes it.