I have a quick question about using racing synthetic motorcycle oils in a dual sport motorcycle mainly used on the street. It is my understanding that racing oils are mainly designed for the track and may not be ideal for use in a regular "frequently" used motorcycle. It is thought that the racing oil will be used for a race and then changed soon after. My question is how does this pertain to motorcycle oils such as Mobil 1 10w-40 racing motorcycle oil where they only make one form of a synthetic oil in the 10w-40 grade and that grade claims to be for "racing" on the label? Is Mobil 1 10w-40 racing motorcyle oil ideal to use in a daily use motocycle where the OCI may be several thousand miles and once or twice a year? Will I loose any engine life by using this oil over another company's synthetic oil that comes in both regular use and racing form such as Motul 7100 / 300v? As everyone probably knows, Motul 7100 is a full sythetic designed for daily use while the 300v is a full synthetic designed for racing use. I know Castrol also had two forms of synthetic 10w40 motorcycle oil (race and regular) a couple of years ago, but I looks like they now only have a regular form now. I like Mobil 1 oils and have had very good luck with their use in my cars and trucks over a number of years, hence the reason I am interested in using it in my motorcycle. Thanks for any comments back.
Racing motorcycle oils
- Thread starter BradleyB
- Start date
Amsoil's smoother and shifts better in my bike than M1 racing oil.
Any of those oils you mentioned are for everyday use, regardless that on the Mobile 1 says Racing.
The Amsoil looks the most robust and it has a bit higher viscosity than the other three oils.
Below are their product technical data sheets. Looking at their technical data I would choose either Amsoil or Motul. The Amsoil has the higher TBN (11.6) and HTHS (4.7) values that makes it the most robust of all four oils. Amsoil and Motul displayed their oils' TBN (total base number) and HTHS (high temp high shear) values, where Mobile 1 and Castrol don't or at least I couldn't find it.
Amsoil Metric 10W40 (second page of PDF, second column is the tech data for 10W40)
https://amsoilcontent.com/ams/lit/databulletins/g3348.pdf
Motul 7100 10W40 (second page of PDF is the data)
https://azupim01.motul.com/media/motulData/DO/base/7100_10w-40_4t_en_fr_motul_16500_20230929.pdf
Mobile 1 Racing 10W40 (technical data in the bottom of the page, before reviews)
https://www.mobil.com/en/lubricants...ur-products/products/mobil-1-racing-4t-10w-40
Castrol Power1 4T 10W-40
https://msdspds.castrol.com/bpglis/...56137F980258A5F0019EB1C/$File/wepp-cxb7jx.pdf
The Amsoil looks the most robust and it has a bit higher viscosity than the other three oils.
Below are their product technical data sheets. Looking at their technical data I would choose either Amsoil or Motul. The Amsoil has the higher TBN (11.6) and HTHS (4.7) values that makes it the most robust of all four oils. Amsoil and Motul displayed their oils' TBN (total base number) and HTHS (high temp high shear) values, where Mobile 1 and Castrol don't or at least I couldn't find it.
Amsoil Metric 10W40 (second page of PDF, second column is the tech data for 10W40)
https://amsoilcontent.com/ams/lit/databulletins/g3348.pdf
Motul 7100 10W40 (second page of PDF is the data)
https://azupim01.motul.com/media/motulData/DO/base/7100_10w-40_4t_en_fr_motul_16500_20230929.pdf
Mobile 1 Racing 10W40 (technical data in the bottom of the page, before reviews)
https://www.mobil.com/en/lubricants...ur-products/products/mobil-1-racing-4t-10w-40
Castrol Power1 4T 10W-40
https://msdspds.castrol.com/bpglis/...56137F980258A5F0019EB1C/$File/wepp-cxb7jx.pdf
Last edited:
I'm running Motul 300V 4T 15w50 in all five of our sportbikes. I leave it in for the full OCI. The bikes run and shift great.