Power Up 5W-40 SN/CJ4 Fully Synthetic Muscle Tech series helps to sustain improved performance for longer, even when under pressure, helps to maximise short and long term engine performance, delivers excellent levels of protection across a variety of driving conditions and temperatures and reduces engine deposits to help maximise engine response. In addition to that due to our adhesive friction modifier, Muscle Tech is able to withstand 4 to 5 times more loads and heat compared to other engine oil.