and storage of motor oil can also lead to contamination and turn your motor oil bad. When an engine is warm, the motor oil stays warm, making it easier to keep contaminants trapped in the oil ...

This would allow the engine to crank with the starter motor ... filters may not have the option to circumvent that "contaminated" new oil, if pre-filling.) Surprisingly, the theory that new ...

The engine misfiring. The engine running poorly when idling. To further complicate things, there won't necessarily be any ...

The recall also calls for the engine oil cap to be replaced to reflect ... implemented on or before June 1 st, 2024, addressed contamination and quality issues. Model-year 2025 vehicles were ...

Learn what happens when you run old oil in your car, why old oil breaks down, and why some car makers recommend more miles ...

The owner of a Citroën C4 says a dealership asked him to fork out £400 for a repair linked to a known manufacturing defect.