Sau đây là thư từ trao đổi giữa em và hãng Addinol về vấn đề thời gian thay dầu:
"Dear Jeannette,
Thank you very much for your quick and valuable assistance. We greatly appreciate it. Now one more question, yet most important one that affects our sale policy in Vietnam as a whole: Since almost all private and family cars in Vietnam do operate under hard working conditions: city heavy traffic with constant traffic jams causing unstable working regime of the engines, other oil companies like Mobil 1, Total... recommend that their high-performance oil designed for change period up to 15000 mile, in Vietnam to reduce it to only 10,000 - 15,000 km. Now please let us know if Addinol can make a difference by keeping the promised oil change period unchanged or we sould follow the above-mentioned oil producers and reduce it by half or so? Please note that we bear the responsibility for the safety of many cars in Vietnam and if we succeed to market Addinol's products here, this number will be multiplied quickly !
Now I just can't wait for your answer !
Best regards,
Tuan"
Trả lời:
"
Dear Tuan,
You can rely on the km value which get from Mobil or Total. ADDINOL engine oils are also suitable for 10,000 to 15,000 km under hard conditions – or oil change once a year.
But in general, the OEM of the engine (e.g. BMW, Mercedes-Benz or GM) define the oil change intervals!!!
This data you will find in every instruction manual of the vehicle.
We, as lubricant supplier are not allowed to give instructions regarding oil change intervals.
In general, the oil change interval depends on the following matters:
- Quality of the fuel
ð High sulphur content – low operating hours
ð Low sulphur content – longer operating hours
- Respective engine and conditions
The description of low and longer operating hours are defined by the concerning OEM of the engine!!!
If you have further questions please do not hesitate to contact us.
Best regards and have a nice weekend
Jeannette
"
Vậy nhé các bác. Quyền lựa chọn hoàn toàn thuộc về các bác !