Originally Posted by DrDanger
Ineo First is a low Saps C1 grade oil - a must for some diesel DPF's. Has a low TBN of around 6 (2018 VOA), so the russian oil club does not like it much. Not suited for longer intervals/tough condititions, provides some fuel economy.
Although I have not seen a VOA on the Quartz it has a TBN of over 10, also a is a full SAPS A3/B4 oil, so
much more suited to heavier and / or longer use. Not as fuel saving.
Oil club (Russian) is sticking to the oil condemnation theory of TBN at
Hence you have MB 229.5 A3B4 oils often being recommended for condemnation/disposal at 4-5k miles oil usage and quality MB 229.51/2 C3 oils being condemned at 2.5-3.5k miles in very very low mileage new cars .
IMHO, that is really old school and conservative, holding on rules/theories adopted in the era of CG4/CH4/ACEA E4 oil formulation where virgin TBN in range of 12 -16 or higher, and where 5000-10000 ppm sulfur content diesel and leaded gasoline with 5000 sulfur content was prevailing .
Respectfully I disagree with your statement in bold .
Edit:Euro 4/5 diesels/gasolines easily available in Russia and its surrounding States ?
Edit:Grammar.