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What about your vehicle mrgto455? Seems every 3.0 with timing chain issues I've seen has been a 2010. Family friend had bought her daughter a used '10 SRX 3.0 and the timing chains went on it. But it did have over 200k miles.
I have 155K miles on mine. I've always used Mobil 1/Amsoil/Pennzoil Platinum(what's in it now) along with a FilterMag on the filter and other than a P0017(See my thread) code I haven't had any issues with my timing chain. I'm hopeful that by doing appropriate oil changes at regular intervals and using good oil it will save me the grief of timing chains. I can't say the same about the trans as I never changed the oil on that until like 125K miles and it failed at 149K miles.
 
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