Which forum is appropriate for a question about motor oil? Thank you

I wouldn't say a forum as everyone has their own preference if i want advice I e-mail opie oils the head honcho there is called guy he knows loads about oil and is on most uk based forums
http://www.opieoils.co.uk/ L322 2008 vogue
R53 Cooper S Works tuned beyond the works SOLD
R33 Nissan Skyline in rebuild 400bhp atw

I'm I'm Idaho, USA. I was going to ask if I could use my jeep favorite, Pennzoil Platinum 5w-30 or possibly even the high mileage version? Anyone on here successfully using either one in a 2006 HSE or similar vehicle? Just got it yesterday. Impulse buy, was looking for a WK Grand Cherokee lol.

it's worth a try emailing and asking just explain what you're thinking L322 2008 vogue
R53 Cooper S Works tuned beyond the works SOLD
R33 Nissan Skyline in rebuild 400bhp atw

Just check the specs in your handbook for your region...

Make has little difference, it's the weight of the oil that's important...  Pete
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2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand Sold
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Sold
2002 L322 Vogue 4.4 V8 Epson Green (Fatty Offroader) Sold
-Click for Project Fatty off roader-

Thanks everyone.