Quaker State
02-06-2012, 08:24 PM
#4
Team Owner
Member Since: Jun 2005
Location: Northern, VA
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St. Jude Donor '15
"In honor of jpee"
Enhanced Dura. is not a full syn. and doesn't meet GM specs for C6. Ultimate Dura. is a full syn. and does meet 4718M, but that is not good for C6's requiring Dexos, the latest GM designation. check your owner's manual for your year car and see if it says Dexos (which is backwards compatible w. 4718M-requiring cars).
02-06-2012, 09:09 PM
#6
Cruising
Member Since: Mar 2009
Location: Grafton WI
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Quaker State Ultimate Durability is a Dexos 1 licensed oil. Here's the list:
http://www.gmdexos.com/licensedbrands.html
http://www.gmdexos.com/licensedbrands.html
02-06-2012, 09:14 PM
#7
Team Owner
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St. Jude Donor '15
"In honor of jpee"
You are correct/! Oddly, QS Ultimate Dura. lists Dexos qualified in text but not in table of what specs it meets. Oh well....
http://www.quakerstate.com/#/motor-o...ate-durability
http://www.quakerstate.com/#/motor-o...ate-durability
