Hello community,
So for emissions and efficiency, the BMW F90 M5 has an operating oil temperature of 120 degrees Celsius or approx 250 Fahrenheit. I'm guessing this is a new trend in the emission race and probably common among many new performance cars. The M5 even keeps cooling circulation suppressed (thermostat etc) till the operating temperature is reached, instead of initiating the cooling process at 90 degreesC for example.
So based on this new (to me) concept, should we be looking at new oil characteristics choice to ensure engine wear protection? With a vague understanding of manufacturer approvals A2, A3, B2, B3, LL01, LL04 of the recommended oils (0W-30, 5W-40), it seems that the HTHS requirement is equal or greater than 3.5 mPas. Is this enough?
I know that a M1 or Motul BMW Specific oil would be more than fine, but I'm curious to see if anybody in the community has come across any matters of concern with constantly running such high temps in performance cars and if you have any recommendations.
Thanks
Tak
So for emissions and efficiency, the BMW F90 M5 has an operating oil temperature of 120 degrees Celsius or approx 250 Fahrenheit. I'm guessing this is a new trend in the emission race and probably common among many new performance cars. The M5 even keeps cooling circulation suppressed (thermostat etc) till the operating temperature is reached, instead of initiating the cooling process at 90 degreesC for example.
So based on this new (to me) concept, should we be looking at new oil characteristics choice to ensure engine wear protection? With a vague understanding of manufacturer approvals A2, A3, B2, B3, LL01, LL04 of the recommended oils (0W-30, 5W-40), it seems that the HTHS requirement is equal or greater than 3.5 mPas. Is this enough?
I know that a M1 or Motul BMW Specific oil would be more than fine, but I'm curious to see if anybody in the community has come across any matters of concern with constantly running such high temps in performance cars and if you have any recommendations.
Thanks
Tak