Originally Posted By: ToadU
No. It's not. Why would you trust people off the internet with no verifiable credentials, no engineering departments, no testing grounds??? The manufacturer and engineers that make the product actually have tested and tested and tested snd engineered their units for specific oils. You and no one on here are smarter than the people who deigned, built and tested their own product. Why the obsession to not follow the directions? Because it works in a one off antidotal testimonial should somehow outweigh hard facts written in the owners manual is just really silly
A comparison would be you can use a 30amp breaker with #14 wires. It works. A lot of people have done it. But, the science and engineering prove this is a horrible idea because #14 wire is only safe with a maximum Of a 15amp breaker. It's also the National Code too.
You can put a 100 watt bulb in a max 40 watt socket. It works. Doesn't mean it's a good idea.
Don't risk you valuable investment by literally performing a science experiment with it. Follow the directions. Use one of thr oil weights reccomended for your temperature range.
Someone has to agree with me here? It's such common sense.
Electricity and engine lubrication are two totally different science. They don't compare. OPE Engineers often aren't into lubrication as you might think, as there recommendation are fairly common motor oils and fairly general. They only recommend what they been tested on. As far as what Generic has listed in motor oil, they are not picky. But there are better oils they could have used. Using a motor oil that will hold up to hours on hours of continuous use is important. Using the most commonly available HDEO synthetic 5w40 motor oil is better than anything Generac has listed. If your not sure, Kawasaki has now motor oil recommendations from 30 to 50 weight and there is not much difference in how Generac and Kawasaki engines treat there motor oil.