Oxidation in Diesel engines
Oxidation in Diesel engines
(OP)
Why am I seeing oxidation levels rise in our new EGR-DPF engines. Levels have risen about 6%-8% versus just an EGR engine. We are using the new CJ4 oils from a major supplier. Any advice is welcome and Happy Holidays





RE: Oxidation in Diesel engines
RE: Oxidation in Diesel engines
Through Oil Analysis. We sample every 12K. Our units with the DPF have 200K on them. We did not se this using CI 4plus engine oils. Since we have 120 units on CJ 4 we made the move over to the whole fleet. No other levels have increased. My concern is what effects is oxidation or increased oxidation going to have on engine life
RE: Oxidation in Diesel engines
FTIR can be used to quantify oxidation by looking at the carbonyl peak that grows as oxidation increases
Differential scanning calorimetry (DSC) can be used whereby you heat the oil under oxygen at high temperature and wait for an exotherm (heat output).
What the previous poster is getting at is that you need to understand how the method works before you can say whether the results between two oils can be compared fairly.
Chris DeArmitt
RE: Oxidation in Diesel engines