Dear Paveena,
Wie geht es Dir? How are you?
No, only oil (any oil) can be used to calibrate the VITO® oiltester.
- just use a slightly moist cloth and a mild detergent.
- Sorry what exactly do you need to know?
- You should/may re-calibrate the oiltester once a year
Looking forward to hearing back from you and wishing you also a pleasant day(night)