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Dominator 15W-50 Racing Oil Product Code: RD50QT-EA
AMSOIL Dominator Synthetic Racing Oil features an additive package heavily fortified with zinc and phosphorus for superior long-term wear protection So does the ARO, 20w-50 |
Originally Posted by Hydrocruiser
(Post 2977236)
SAE 20W-50 Synthetic Premium Protection Motor Oil Product Code: AROQT-EA
20W-50 Advanced Synthetic Motorcycle Oil Product Code: MCVQT-EA Dominator 15W-50 Racing Oil Product Code: RD50QT-EA AMSOIL Dominator Synthetic Racing Oil features an additive package heavily fortified with zinc and phosphorus for superior long-term wear protection SAE 15W-40 Heavy-Duty Diesel and Marine Motor Oil Product Code: AMEQT-EA All four Amsoil products would be fine. Fewer oils these days are true GRP IV. PAO Synthetics. But these all are. Any of these along with M-1 V-Twin and M-1 15W-50 SilverCap are great choices. |
mobil1 v-twin sale
advance auto parts site. mobil1 v-twin 20w-50 7.99/qt. at check out enter promo code PS20 for additional 20% off. that's $6.39/qt. and free ship over $75.00.
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Originally Posted by smokinbob
(Post 3078664)
advance auto parts site. mobil1 v-twin 20w-50 7.99/qt. at check out enter promo code PS20 for additional 20% off. that's $6.39/qt. and free ship over $75.00.
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I was asked to do a brief 2010 lubrication recommendation.
#1. Do not use SM rated oils as they have too little ZDDP. Mobil-1 20W-50 V-Twin is still the one to beat. Royal Purple, Amsoil V-Twin and Redline 20W-50 are amazing as well. $2.Use a Wix oil filter or Mercury racing oil filter and you will have the best combination. #3. Mercury 20W-40 Synthetic Blend is an outstanding oil! #4. If you run hard change often. Synthetic in a boat engine is not for extended drains...it's for better heat protection and extendedbearing life. #5. Castrol/Kendall/Valvoline SL rated oils 20W-50 are excellent. |
Originally Posted by Hydrocruiser
(Post 3100332)
I was asked to do a brief 2010 lubrication recommendation.
#1. Do not use SM rated oils as they have too little ZDDP. Mobil-1 20W-50 V-Twin is still the one to beat. Royal Purple, Amsoil V-Twin and Redline 20W-50 are amazing as well. $2.Use a Wix oil filter or Mercury racing oil filter and you will have the best combination. #3. Mercury 20W-40 Synthetic Blend is an outstanding oil! #4. If you run hard change often. Synthetic in a boat engine is not for extended drains...it's for better heat protection and extendedbearing life. #5. Castrol/Kendall/Valvoline SL rated oils 20W-50 are excellent. |
Hydro - any downside to running Valvoline 40 Racing conventional oil? 540's NA, temp never above 180. Engine builder wants to stay with this oil. Using a Wix filter. Thanks.
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Originally Posted by Hydrocruiser
(Post 1961953)
I only have a couple minutes to do this today so I will do it quick and dirty....these are products OSO members have used and have enjoyed much success with.
Some go with all Mercury products; others with M-1 or Amsoil and some mix and match. My personal picks are in bold. Synthetic oil: -Amsoil Racing Severe Service 20W-50 -Mobil-1 15W-50 EP -Mobil-1 20W-50 V-Twin -Royal Purple 20W-50 -Redline 20W-50 I was wondering if someone could shed some light on the FC-W rated oil. When I read about oil in our Merc 4986HO Manual they have a note "....., non FC-W rated synthetic oils,.... are specifically not recommended." What is FC-W rated oil? What does it do? It seems only Mercury/Quicksilver oil has this rating. A little confused as to why. Thanks for the help. :coolcowboy: |
HydroCruiser -
Any opinions of the Brad Penn 20W-50? A couple of engine builders in the area swear by the stuff, and is currently what I am running. |
Originally Posted by TW720HVY
(Post 3135375)
I was wondering if someone could shed some light on the FC-W rated oil.
When I read about oil in our Merc 4986HO Manual they have a note "....., non FC-W rated synthetic oils,.... are specifically not recommended." What is FC-W rated oil? What does it do? It seems only Mercury/Quicksilver oil has this rating. A little confused as to why. Thanks for the help. :coolcowboy: It's an NMMA certification for oils. Happy reading: http://www.nmma.org/certification/lo...nual_9-06_.pdf Amsoil Marine has an FC-W rating, maybe others as well. Mercury doesn't have a monopoly on that market. |
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