07 RX400H, Kirkland 5w30, 8500 miles

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Dec 4, 2005
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366
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Where Jackie Jr got whacked
Still shearing down, just used up the last of my Kirkland oil. So one more report to follow with it. Will try something different next time.

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21 Si but the UA is 35? Maybe 21 isn't out of line w/this engine...hmm strange. :unsure:
Viscosity low but not terrible for the thinner 30 grades of today & 8,500 miles. But yeah either shortening the interval or...What are you planning on trying next?
 
Not bad, tbn is in the 3's. Kirkland has lost some of its value. It's now $40 for 10 quarts when it used to be $30 or a bit less. I'd rather just order Qs 5w-40 on wm.com with free shipping since it's only $3 a jug more but better.
 
Yeah….im sure they released this chart for CAFE requirements on model years of the past…🙄
Another guy who ends his message with an emoji.
yes, it was spec'd for 5W-30 when the vehicle was made. I don't care what it was spec'd 2 decades later
 
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I wouldn't

It's has already sheared below it's viscosity grade. And just because the analysis looks okay on paper, doesn't mean the internals can show signs of tarnishing.
No one, including Blackstone themselves know whether there is mechanical shear of the VM or if there is fuel dilution. A Blackstone analysis cannot determine this.
 
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