Hi
I’m looking for some help / advice with a recent UOA I had done on my car.
98 RON fuel sulphur content over here in Oz is supposed to be 50 ppm.
The TBN came back at 0 on a sample with 4040 kms (2510 miles) on the oil, which was ran for approx two months. I’m wondering if I should get it retested elsewhere or take it as gospel?
The oil was Mobil 1 5w30 ESP, metal #’s look fine and oil was still in grade but oxidation was 26, nitration 10 and sulphation 34, zero fuel dilution.
Just wondering.. When they do the tbn test, would it screw the results up if they used the wrong oil base tbn value which was higher (They used M1 5w30 EP as the could not find ESP)
I changed the oil at the time of collection of the sample.
thanks
I’m looking for some help / advice with a recent UOA I had done on my car.
98 RON fuel sulphur content over here in Oz is supposed to be 50 ppm.
The TBN came back at 0 on a sample with 4040 kms (2510 miles) on the oil, which was ran for approx two months. I’m wondering if I should get it retested elsewhere or take it as gospel?
The oil was Mobil 1 5w30 ESP, metal #’s look fine and oil was still in grade but oxidation was 26, nitration 10 and sulphation 34, zero fuel dilution.
Just wondering.. When they do the tbn test, would it screw the results up if they used the wrong oil base tbn value which was higher (They used M1 5w30 EP as the could not find ESP)
I changed the oil at the time of collection of the sample.
thanks