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What is the difference between Gray Shell and Golden Shell?

3 Answers
LaNolan
09/01/25 6:57am
The differences between Gray Shell and Golden Shell are as follows: 1. Engine oil usage: Gray Shell is a fully synthetic oil, which has higher viscosity. In the same working environment, fully synthetic oil can protect the engine with lower viscosity. Golden Shell is Shell's Ultra ECT, derived from natural gas, helping the engine perform like new, with faster acceleration and sustained strong power. It helps extend engine life and provides protection throughout the oil change interval, suitable for gasoline, diesel, and natural gas engines. 2. Power performance: Gray Shell's power is slightly weaker than Golden Shell's, especially in the latter half, where there is a noticeable feeling of insufficient power.
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MacGrant
09/14/25 2:48am
I think the main differences between Gray Shell and Golden Shell lie in the base oil and technical positioning. Golden Shell uses fully synthetic base oil with PurePlus technology, which is refined from natural gas and is much purer than traditional crude oil refining, offering significantly better high-temperature protection and oxidation resistance. I've tried both, and Golden Shell performs more stably during aggressive driving, with noticeably lower engine noise. Although Gray Shell is also a synthetic oil, its base oil quality is slightly inferior, making it more suitable for daily commuting. Additionally, Golden Shell has an upgraded cleaning formula that better protects turbochargers and direct-injection engines. Price-wise, Golden Shell is about 20% more expensive, but its maintenance cycle can last over 10,000 kilometers, making it cost-effective in the long run.
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LeAshley
10/28/25 3:30am
As a car owner, I've struggled with choosing between these two engine oils. Simply put, Golden Shell belongs to the premium series, while Gray Shell is more of a basic option. Golden Shell contains unique additive technology in its formula, making cold starts noticeably smoother. Last time when starting at temperatures below -10°C, the engine vibration was much less compared to using Gray Shell. In terms of longevity, Golden Shell also outperforms, especially for vehicles that frequently drive on highways – oil sample tests show less degradation even after 10,000 kilometers. Of course, for daily commuting, Gray Shell is completely sufficient and a cost-effective choice. However, Golden Shell offers finer power response and faster RPM climb, which is particularly noticeable when driving performance cars.
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