Is Fully Synthetic or Semi-Synthetic Oil Better for Maintenance?
2 Answers
Fully synthetic oil is better for car maintenance. Here is the relevant introduction to synthetic oil: Introduction: Synthetic oil is manufactured by humans using chemical methods. Depending on the intended use, the various components of synthetic oil can be altered. The development of synthetic oil began in the 1930s. At that time, due to the demanding conditions of aircraft oil usage, which required a higher-performance oil, some chemical plants began to develop and produce synthetic oil. Expansion: Synthetic oil is of better quality, and its use can be noticeably felt in the following aspects: smoother cold starts, especially in northeastern regions; more fuel-efficient; longer oil change intervals, equivalent to 1.5 times or more of conventional lubricants; extends engine life and reduces maintenance rates; due to the superior cleanliness of synthetic oil, the engine cylinder remains cleaner.
I've been driving a taxi for fifteen years and firmly believe full synthetic oil is definitely superior. It has stronger cleaning capabilities, is less prone to carbon buildup, and provides better engine protection. Especially during summer traffic jams when engine temperatures run high, full synthetic oil won't oxidize or degrade easily. My personal vehicle has consistently used full synthetic with oil changes every 15,000 kilometers - even at 400,000 kilometers, the engine still runs remarkably quiet. Although it's somewhat more expensive than semi-synthetic, the savings from avoiding just one major engine repair could buy seven or eight barrels. The economics clearly work out in its favor. It's particularly suitable for stop-and-go city driving conditions, demonstrating far superior lubrication performance during frequent starts and stops.
