Engine Oil Truths You Need to Know > 자유게시판

Numerous car owners operate under false assumptions about motor oil — and these myths can lead to poor maintenance choices that harm the engine over time. A widespread belief is that oil must be swapped every 3,000 miles — this rule came from older vehicles with less advanced engines and oils. Modern oil technology allows for service intervals stretching well past 7,500 miles, اتوسرویس داوود depending on driving conditions and manufacturer recommendations. The owner’s manual, not folklore, should dictate your oil change schedule.

The belief that thicker oil = more safety is dangerously wrong — while older engines with high mileage might benefit from slightly thicker oil to seal worn components, overly thick oil compromises lubrication and hurts fuel economy. Factory specs are based on exact viscosity requirements, and deviating from those recommendations can do more harm than good.

Oil color is often mistaken as a reliable indicator — oil darkens quickly because it is doing its job—trapping contaminants and carbon deposits. Black oil can still be fully functional. Oil life sensors and service manuals are the only accurate guides.

A persistent myth claims synthetics are too costly or risky for high-mileage cars — synthetic lubricants provide unmatched performance and durability. many high-mileage vehicles run better on synthetic oil. you save on repairs and fuel over time.

Topping off is mistaken for a full service — while adding oil between changes is okay for minor leaks, it doesn’t remove contaminants or restore the oil’s additives. Over time, the oil breaks down and becomes less effective. Regular oil changes are still essential even if you top off occasionally.

Understanding the facts about engine oil helps you make smarter decisions that protect your vehicle and save money in the long run. Always follow the manufacturer’s guidelines and rely on trusted sources rather than hearsay.