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LSPI frequency and TEOST-33 #4720998
04/08/18 08:57 PM
04/08/18 08:57 PM
Joined: Oct 2005
Posts: 5,098
Fredericksburg, VA
JAG Offline OP
JAG  Offline OP
Joined: Oct 2005
Posts: 5,098
Fredericksburg, VA
Low speed pre-ignition (LSPI) frequency and whether the oil can pass the TEOST-33 test are affected by whether the detergents used contain calcium or magnesium. Sodium was also tested. That is not new information to many of us. What I found interesting is that it also matters whether the detergent is overbased or it is low based/neutral. It also matters whether the detergent is a sulfonate or a phenate. They didnít test it but it also probably matters whether it is a salicylate. I also found it interesting how many of the formulations failed the TEOST-33 test. See toward the end of the patent in the link for the test results.

http://www.freepatentsonline.com/y2017/0015927.html

Re: LSPI frequency and TEOST-33 [Re: JAG] #4721009
04/08/18 09:08 PM
04/08/18 09:08 PM
Joined: Mar 2015
Posts: 5,420
Virginia
bbhero Online content
bbhero  Online Content
Joined: Mar 2015
Posts: 5,420
Virginia
Great find JAG. And these people obviously work for Afton out of nearby Richmond Va. Close to you and me.


Nissan Altima 3.5 Coupe
Mobil Super 5w30 Wix 57356
"Treat your family like your friends and treat your friends like your family."
Re: LSPI frequency and TEOST-33 [Re: JAG] #4721013
04/08/18 09:12 PM
04/08/18 09:12 PM
Joined: Oct 2005
Posts: 5,098
Fredericksburg, VA
JAG Offline OP
JAG  Offline OP
Joined: Oct 2005
Posts: 5,098
Fredericksburg, VA
Indeed, bhero. Iíd love to go on a tour of Aftonís facilities.

Re: LSPI frequency and TEOST-33 [Re: JAG] #4721144
04/09/18 03:56 AM
04/09/18 03:56 AM
Joined: Mar 2015
Posts: 5,420
Virginia
bbhero Online content
bbhero  Online Content
Joined: Mar 2015
Posts: 5,420
Virginia
One interesting note I found in this was how titanium was also introduced to help limit LSPI events as well. Interesting enough the new version of Valvoline Advanced full synthetic has titanium in it has well. Looks to be Valvoline got their additive package from Afton.


Nissan Altima 3.5 Coupe
Mobil Super 5w30 Wix 57356
"Treat your family like your friends and treat your friends like your family."
Re: LSPI frequency and TEOST-33 [Re: JAG] #4721162
04/09/18 04:35 AM
04/09/18 04:35 AM
Joined: Jul 2016
Posts: 1,224
Europe
SonofJoe Offline
SonofJoe  Offline
Joined: Jul 2016
Posts: 1,224
Europe
Oh dear! Still making basic, elementary mistakes? (puns fully intended)...

Re: LSPI frequency and TEOST-33 [Re: JAG] #4721239
04/09/18 06:40 AM
04/09/18 06:40 AM
Joined: Oct 2005
Posts: 5,098
Fredericksburg, VA
JAG Offline OP
JAG  Offline OP
Joined: Oct 2005
Posts: 5,098
Fredericksburg, VA
Titanium and tungsten additives, by Afton: http://www.freepatentsonline.com/y2017/0015928.html


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