Why does fuel consumption increase after an oil change?

1 Answers
MaximusLynn
07/30/25 8:55am
After changing the oil, the increase in fuel consumption may be due to the new oil not yet reaching its optimal state. It takes some driving time for the new oil to achieve its best performance. Here is some information about SL fully synthetic oil: Advantages of fully synthetic oil: Fully synthetic oil is superior to semi-synthetic oil in terms of base oil selection. Differences in replacement intervals: Semi-synthetic oil should be replaced every six months or 7,500 kilometers, while fully synthetic oil should be replaced every year or 10,000 kilometers. Fully synthetic oil has a wider operating temperature range and can protect the engine with a lower viscosity under the same working conditions, whereas semi-synthetic oil has relatively higher usage requirements. Replacement interval: SL fully synthetic oil should be replaced every year or 10,000 kilometers.
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