extended drain with formula shell

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3,192
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TEXAS
i just came across some formula shell syn sm and im thinking of using it in my explorer for 7500 or so (50/50). im not sure the tbn. think it will do it?
 
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28,123
Location
Regina, Saskatchewan, Canada
Be cautious, though, as I pointed out in another thread that they had their latest specs messed up, with conventional FS and synthetic FS having identical specifications. I've emailed them in that respect.
 
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