Gazpromneft 4 and 5 liter cans have a unique code printed as additional
protection of the product. The code can be verified at the website
www.gazpromneft-oil.com:
Modern engine oils are designed using synthetic components free of any odor and are absolutely translucent and colorless. Odor and color of the finished product is determined by additive package type blended in the base oil.
Oil change routines are determined by vehicle manufacturer. According to instruction manual drain intervals must be shortened in half if driving conditions are severe. Examples of severe conditions:
Before upgrade to a superior oil specification (e.g. API SL replaced with API SN)
Low quality (high sulfur) fuel used
Previous drain intervals unknown or OEM recommended intervals exceeded
Questionable quality of the oil used earlier
Expiration date (shelf time) on the label and drain interval of the oil are different concepts. Oil can be filled in the engine any day till the end of expiration date. If oil is already filled in the system it must perform according to specifications till the end of drain interval recommended by vehicle manufacturer.
Combustion related oil loss is inevitable because part of the oil left on cylinder walls is burned together with fuel. Combustion related oil consumption limits are stated in the instruction manual.
Any engine model has specific set of requirements imposed by vehicle manufacturer according to OEM own standards, usually incorporating international API, ACEA, ILSAC standard requirements as well. Assigned engine oil specification is indicated in the instruction manual
Use of energy conserving lubricants provides fuel economy up to 3% in normal driving conditions*. Such products are applicable only for the engines designed to be lubricated by these specific oils.