Sierra 25w40
#4
Registered
Its all made in the same place, branded different. base stock is the same, sometimes they may alter the ratios of the additive package. If it has the right stamp recommended 'BIA' TCW3 NMMA etc it must be good.
Mercury, walmart, Sierra, BRP don't have there own refinery. There are only 3 refinery companies in north America. Everyone else orders what they want and uses there own marketing machine of BS to sell it.
If it is labeled with the ratings and certifications you need, its fine.
Mercury, walmart, Sierra, BRP don't have there own refinery. There are only 3 refinery companies in north America. Everyone else orders what they want and uses there own marketing machine of BS to sell it.
If it is labeled with the ratings and certifications you need, its fine.
#5
Banned
Citgo makes / blends a lot of oil for the marine OEM's. 2 stroke and 4 cycle oils.
Citgo also makes gear oils for some of the marine OEM's. Mercruiser gear oil is made by Citgo but Mercruiser high performance gear oil (green color) is made by Bel Ray.
Also I think there is only 6 or 7 additive companies left that the oil blenders can buy from. Shell, Mobil & Lubrizol are 3 of them.
I think the Sierra motor oil falls under a group II for their base stock. There is a difference in oil brands especially on the base stocks side of things plus the additive packages being blended into the base stocks. Group I thru III and Group IV & V in which are your true synthetic oils for base stocks.
Citgo also makes gear oils for some of the marine OEM's. Mercruiser gear oil is made by Citgo but Mercruiser high performance gear oil (green color) is made by Bel Ray.
Also I think there is only 6 or 7 additive companies left that the oil blenders can buy from. Shell, Mobil & Lubrizol are 3 of them.
I think the Sierra motor oil falls under a group II for their base stock. There is a difference in oil brands especially on the base stocks side of things plus the additive packages being blended into the base stocks. Group I thru III and Group IV & V in which are your true synthetic oils for base stocks.
Last edited by BUP; 10-11-2013 at 10:44 AM.
#6
Registered
Its all made in the same place, branded different. base stock is the same, sometimes they may alter the ratios of the additive package. If it has the right stamp recommended 'BIA' TCW3 NMMA etc it must be good.
Mercury, walmart, Sierra, BRP don't have there own refinery. There are only 3 refinery companies in north America. Everyone else orders what they want and uses there own marketing machine of BS to sell it.
If it is labeled with the ratings and certifications you need, its fine.
Mercury, walmart, Sierra, BRP don't have there own refinery. There are only 3 refinery companies in north America. Everyone else orders what they want and uses there own marketing machine of BS to sell it.
If it is labeled with the ratings and certifications you need, its fine.
That being said....when is the last time you heard a machinist say "Yup, she blew up because you brand x oil, if you used brand y this would not have happened" ? Personally for me....never
#7
Offshoreonly Advertiser
Offshoreonly Advertiser
Mercury/Sierra 25W - 40 oil is a 25 straight weight and a 40 straight weight oils combined together. Same oil. Same drive oil also.
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www.diamondperformanceparts.com
[email protected]
http://www.facebook.com/pages/Diamon...07878772615803
302-521-0123
The Best Parts & Service At The Best Price
#8
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Its all made in the same place, branded different. base stock is the same, sometimes they may alter the ratios of the additive package. If it has the right stamp recommended 'BIA' TCW3 NMMA etc it must be good.
Mercury, walmart, Sierra, BRP don't have there own refinery. There are only 3 refinery companies in north America. Everyone else orders what they want and uses there own marketing machine of BS to sell it.
If it is labeled with the ratings and certifications you need, its fine.
Mercury, walmart, Sierra, BRP don't have there own refinery. There are only 3 refinery companies in north America. Everyone else orders what they want and uses there own marketing machine of BS to sell it.
If it is labeled with the ratings and certifications you need, its fine.
In no particular order.
Exxonmobil
Shell Motiva
Total
BP
Phillips
Citgo
Koch
Chevron
Houston Refining
Valero
Sunoco
Marathon
Hovensa
Lubrizol is behind many of the after marker oils