First Oil Change

zplugger said:
I just got the Scag Liberty with the Kohler 22hp engine and now have 9 hours on it. I need to change oil and filter, can I use syn oil? Can I use Mobile 1 oil in it? Should I use 10w 40 oil?
Thanks for any suggestions on this, such a great mower.
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Absolutely. Synthetic oils resist thinning out with air-cooled engines, and don't thicken up when cold as much. The wear resistance is superior with them. I went to a diesel oil seminar and the expert talked about the advantages of synthetic oils

I talk with authority here.

I'm a retired MASTER light and heavy truck mechanic for over 50 years
 
It doesn't really matter whether you use synthetic or conventional oils. Lots of commercial guys change their oil at 50 hours. Residential owners usually yearly or 100 hours. That's, if they follow the engine manufacturers recommendations. It's very important to keep the air filters properly maintained and oil level at full.
 
zplugger said:
I just got the Scag Liberty with the Kohler 22hp engine and now have 9 hours on it. I need to change oil and filter, can I use syn oil? Can I use Mobile 1 oil in it? Should I use 10w 40 oil?
Thanks for any suggestions on this, such a great mower.
Click to expand...
Check your engine manual for that information. I know B&S list both petroleum oil and Synthetic oil for use but I don't know about Kohler.
 
For folks reading this thread, I ask you check out You Tube videos by Lake Speed Jr. He is an oil engineer and know this stuff backwards and forwards.

Everyone has a favorite or a long-term brand that they have trusted for years, but the science has not changed, it has improved by leaps and bounds in recent years.

Check out the videos and get some facts from someone who actually works in the oil testing industry.
 
Auto Doc's said:
For folks reading this thread, I ask you check out You Tube videos by Lake Speed Jr. He is an oil engineer and know this stuff backwards and forwards.

Everyone has a favorite or a long-term brand that they have trusted for years, but the science has not changed, it has improved by leaps and bounds in recent years.

Check out the videos and get some facts from someone who actually works in the oil testing industry.
Click to expand...
I've watched him before.
 
Strange .... I've used the wallyworld Super Tech in all our gas engines (12) and Rotella in the diesel (2) for several decades with no issues.
I came to the conclusion over 30 years ago that advertizing doesn't make oils any better.... especially when the ratings are the same.
 
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