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Product Testing: G-Energy Synthetic Long Life 10W-40 Fully Synthetic Engine Oil

09 Oct 2019
Product Testing: G-Energy Synthetic Long Life 10W-40 Fully Synthetic Engine Oil
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Race circuit is ideal proving ground for car manufacturers to undergo research and development for their new technology and performance/reliability study of systems and components. Hence, we took the opportunity to test G-Energy Synthetic Long Life 10W-40 Fully Synthetic Engine Oil on a track day in Sepang International Circuit.

The engine oil is used in a Proton Satria Neo with mild engine modification running lean air-fuel mixture. Oil change was performed before the car is driven to the track. Oil temperature and oil pressure gauge were installed and readings were monitored throughout the test session. The engine has run continuously for about 1 hour on track with some occasional passenger changes in pit stop.

 
Figure 1: Tyre data collection during track day. 
 
On normal driving condition with G-Energy Synthetic Long Life 10W-40 Fully Synthetic Engine Oil, engine oil temperature will reach around 95°C – 110°C while engine oil pressure will be around 5 bar. After the car is driven at fast pace on track for 20min, oil temperature has increased from 110°C to 130°C with noticeable power loss after the oil exceeded 120°C. Oil pressure@130°C has dropped from 5 bar to 4.5 bar. The car continued to run until end of the test session. Engine oil is sampled immediately after the car is in the pit and sent for oil analysis. The purpose of performing this oil analysis is to determine how well the engine is protected despite the engine oil is overheated for majority time of the test session.
 
    Figure 2: Oil analysis result of G-Energy Synthetic Long-Life 10W-40 Engine Oil. 
 
Oil analysis result above showed minimal wear metals found inside the oil sample which is a good indication that anti-wear properties of the engine oil worked to protect wear. Relatively higher amount of molybdenum was detected in oil sample. This may indicate molybdenum is originated from the anti-wear additive package. There is another possibility that it is the result of wear of top piston ring as some engines use molybdenum coating top piston ring. As newer engine oil formulation uses molybdenum in their additive package, this method to pinpoint piston ring failure will be very limited. Hence, a comparison between new and used oil analysis result of same batch will help to ascertain piston ring wear. Consult with engine manufacturers to better understand material used in engines to enable better correlation with used oil analysis result.

In terms of fluid properties, Total Base Number (TBN) has dropped from 10.6 mg/KOH (TDS data) to 8.72 mg/KOH. The TBN depletion rate is higher than normal as the oil was overheated for extended period of time and higher oxidation occurred in the oil which produced more acid in the process. As for viscosity@100°C, the viscosity change comparing oil sample and TDS data is marginal. No permanent thickening or thinning of oil occurred after overheating.

This oil uses calcium-based detergent additive package which has better acid normalising capabilities compared to magnesium-based detergent additive package. Accurate depletion level of additive requires comparison between new oil and used oil analysis result.

 
Figure 3: Track day group photo
 
In conclusion, G-Energy Synthetic Long Life 10W-40 Fully Synthetic Engine Oil would be a great choice for general application for most cars in urban driving and highway driving. Given its performance and retail price of RM160, G-Energy Engine Oil is one of the highest performance-to-price ratio fully imported lubricant in Malaysia market. For all-out racing and high-speed high load driving, you may consider to go for our higher range product such as G-Energy F-Synth and G-Energy Racing product lines.

Contact us now should you wish to learn more on what we do and provide HERE.

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