Quicksilver PWC 2-Stroke Oil
Here is the bottom line on Quicksilver PWC 2-Stroke Oil, manufactured by Mercury Marine.
If you take a minute to read the entire label that is posted on a container of QS PWC 2-Stroke oil you will see that albeit it is rated API TC,the label does not provide a scintilla of information pertaining to whether it is a Low Ash, High Ash or Ash-less oil, or whether or not it can be used in oil injection engines.
On that note, and in consideration that there are a myriad of posts on this Forum regarding Quicksilver oil, this morning I contacted Mercury Marine's corporate headquarters located in Stillwater, OK to solicit information regarding QS PWC 2-Stroke oil.
The representative informed me that to the best of his knowledge, based on what he recalled from a previous conversation that he had at a meeting that occurred about two years ago regarding oils that Mercury Marine (MM) sells, was that Mercury Marine has only sold engine oils that are Ashless because no Mercury engine used a Low Ash or High Ash oil.
When I challenged him about his position he transferred me to the engineering department wherein I was informed by an engineer that QS PWC two-stoke oil is in fact a Low Ash oil and can be used in oil injection engines as well as pre-mix engines.
The engineer did not have a document that I could read confirming his position, however, he assured me that several years ago, the exact date and time unknown, in an attempt to help MM dealerships that sell other brands, MM decided to order a Low Ash oil from the oil manufacture it used.
The engineer declined to inform me what oil company manufactures the oil that bears the MM,Quicksilver label.
Based upon that conversation, the bottom line is that the only Quicksilver oil that can be used in a Sea Doo, if it is the intent of the owner to follow the guidance set forth in all SD Operators manuals, is Quicksilver PWC 2-Stroke oil, be it in the silver container which is a blend of mineral (mineral 80%+-/synthetic 20%+-) or full synthetic (black container)
On a side note, and to help those that followed my footsteps and purchased QS Premium because it is rated API TC, (and TCW3), (two-cycle/water/3rd generation), QS Premium is Ashless as is Premium Plus, (a TCW3 oil).
According to all SD's Operators Guides I've read (I have not read the 1990 Guide) SD's require a Low Ash oil, which is an ingredient added to the oil for lubrication.
DISCLAIMER: Although I am a former criminal investigator with the feds, teacher and law school grad, nonetheless, I am a mere Shade Tree mechanic, so, keep all those facts in mind when you read my post to a Thread. I tend to offer facts, however, some are based on others opinions
or in this case cannot be fully documented.
All I am endeavoring to do is lay out some information based upon my experience. On that note, tread wisely grasshopper.
