eric ramos
New member
hi guys I have question I'm using mobil 1 extended performance 15,000 mile of guaranteed protection 10w-30 advanced full synthetic motor oil on my predator engine 212cc is that ok or should I change the oil to a different kind?
Hopefully, you put that in AFTER break-in.
There are better oils you can run....a lot of folks swear at Mobile One, not by it.
Forgive my ignorance, but why do you hope he put it in after break in? Cost? Just wondering because I have been using whatever cheap 10W30 I could find during break in, then switch to more expensive stuff after. I figure it's not going to be in the engine long enough to matter.
Because synthetic oil will not allow the rings to seat properly...so...you always use dino oil until after break-in.

Because synthetic oil will not allow the rings to seat properly...so...you always use dino oil until after break-in.
Could have made this simpler: read the manual. The information given was for the question asked and certainly applies to not only that question...but many other industrial engines...and any freshly rebuild internal combustion gasoline engines....Because no new engines come with synthetic in them from the factory.If they do it is because the engines are run long enough to break them in first at the engine assembly plant. I have had many bad experiences with Mobil 1 and air cooled engines, mostly flat cams and valve train wear. Amsoil, Torco, Royal Purple, and Redline not so, I do add a little extra zzdp zinc to all oils.
Denny
You are wrong on both counts! I worked in GM Engineering for 33 years and know what I am talking about. I also run nothing but Mobil 1 in air cooled engines and have had no problems.
In your experience at the GM plant, Do they even run test or "break in" the engines in new cars off the assembly line? I have always wondered this.
So... The jack-wad that buys a new mustang and the first day just drives the crap out of it to impress his friends, is probably NOT "breaking in" his engine in proper manner.
You are wrong on both counts! I worked in GM Engineering for 33 years and know what I am talking about.
I also run nothing but Mobil 1 in air cooled engines and have had no problems.
Breaking in rings on a car is just like a Chinese single cylinder engine assuming both engines are machined to precise tolerances.
