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Cant Find Anyone using ROYAL PURPLE OIL

5K views 6 replies 5 participants last post by  nathanjax 
#1 ·
Ive been searching for escalade owners using Royal Purple motore oil but with no luck. Are you using Royal Purple? Have you noticed a difference between other oils? Did it restore horsepower?

Let me know, thanks.
 
#4 ·
I'm using Royal Purple Max-Gear Fluid In the front and rear differential and then Royal Purple Synchromax Fluid in the transfer case. I'm at 70,000 miles, but didn't really notice it "restoring power". I just changed it because I knew it would be better for the truck...
 
#6 ·
Hey before you did the front n rear fluid change, did you experience the typical humming noise? If so did it go away with the royal purple? I always wondered if there was anything out there like Lucas with their addatives for transmissons and engines and so on. I would think Lucas would have something for the diffs and minimize the noise?
 
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