Originally Posted By: Panzerman
I was wondering if the oil that Name brand quick oils put in, is the same oil you buy, just in bulk or a cheaper third grade stuff, not even avaiable to the public. I think I read on here about Mobil wanting extra for Mobil 5000, when that is their cheapest oil in stores. We get our company trucks oil changed at Texeco quick lubes and I noticed on the bill that it says Havoline T36 oil 10w30. I took for granted they used Havoline Deposit shield, now Iam not so sure. I know alot of Dealerships get their oil from Carquest or Napa bulk by the drum and then just tell you its Valvoline. Which it is ,Sort of. Anybody know what the story is.
I believe Havoline T36 is an oil filter.
To answer your question though, the answer is "it depends".
Pennzoil is Pennzoil, it does not differ from bulk to bottle (so says Pennzoil).
Mobil bulk oil is "Mobil Clean" which is not the same as "Mobil Clean 5000" which can only be purchased in bottles or 4-5 qt jugs (so says Mobil). Mobil Clean Bulk is likely similar to Exxon Superflo (which is a decent oil).
I don't know about Chevron/Havoline or Valvoline.