SuperTech quart bottles have a big wide mouth hard to pour without a funnel.
I have a 2 gallon jug of SuperTech 15w40 I bought on sale for $20 I will have to transfer it into smaller containers.
Rotella T1 30W or Supertech HD-30 for Small Engines
- Thread starter RedDragon9
- Start date
SuperTech quart bottles have a big wide mouth hard to pour without a funnel.
I have a 2 gallon jug of SuperTech 15w40 I bought on sale for $20 I will have to transfer it into smaller containers.
If the engine is a side valve,use Briggs SAE 30.Your engine will last longer than on any other oil,and change it once a year,if you remember.All the ohv engines run just fine on a quality 10w30.Dont sweat it.
Yep same here.
I have always used Shell Rotella T1 SAE 30. But newer bottles have lost their API SL rating and is probably only for Diesel? I did find an old stock in Walmart recently. But maybe they make both, not sure.
I have tried Super Tech Synthetic 10W-30 and I found them to be very thin when hot. So switching back to SAE 30. They are getting hard to find lately. I did find these two and plan on trying it out on my riding mower and the push mower soon.
Correction : The Super Tech oil is fine. I had other issues that caused the oil to thin.
I have tried Super Tech Synthetic 10W-30 and I found them to be very thin when hot. So switching back to SAE 30. They are getting hard to find lately. I did find these two and plan on trying it out on my riding mower and the push mower soon.
Correction : The Super Tech oil is fine. I had other issues that caused the oil to thin.
Last edited:
How are you measuring the viscosity? And at what temperature? That oil is going to behave just like a 30-grade, if it doesn't then there's a serious problem. I'm guessing you're basing this on the eye viscometer which is notoriously unreliable.
And both of those SAE 30 oils you show are API SP.
You are right. But I had other issues going on at that time. The key on my blade adaptor sheared and was spinning independently of the shaft and the friction made it hot and the smell of hot metal made me stop the engine.
So, what's wrong with API SP?
- Joined
- Jul 5, 2024
- Messages
- 179
this is a case of a difference making no difference. its a lawnmower. put some oil in it.
15w40 is the new SAE 30. SAE 30 is becoming impossible to find, and 15w40 is a better solution. Cheap, available everywhere, and plenty of protection for small engines.
Okay
And not a thing on the API SP.
The ability to discern viscosity visually comes from having changed oil for the last 12 years right after mowing and at full temp and having noticed the pour rate out of the spout to the oil catch pan. Accurate to the tee? Probably not. Am I right? I know I am.
No doubt. If so you should contact Warren or whomever is the formulator (or Walmart directly) and let them know their oil does not conform to the SAE requirements for a 30-grade. And that you have proof.
Last edited:
I use the same oil on my Cub Cadet riding mower and haven't noticed anything out of the ordinary. I am not dissing the oil here. I had that issue with the blade adaptor spinning independently of the shaft that made it really hot. And yes, I have been using that oil for a while now and the motor still runs fine, thankfully.
And I am embarrassed to admit, I did add STP Ceramic (I know, I know) to the engine oil which could have also caused the viscosity breakdown. Not an additive guy here but wanted to just play around in a small engine to see what happens. Never use any additives on my cars.
Aren't those all for Diesel engines? Anything out there that can be used on gasoline engines as well?
Many carry the spec for gasoline engines also. Rotella 15w40 for example meets API SN, and Valvoline Premium Blue is "one solution" meant for gasoline, diesel, and natural gas applications.
It never crossed my mind to use this grade for OPE. The lowest temp here when I use OPE is around 75 and the hottest, I can work outside is around 95. So, I guess I will try this.
And WalMart has full synthetic with API SN rating for around 16 dollars for a gallon.
https://www.walmart.com/ip/Super-Te...40-Motor-Oil-1-Gallon/5144655450?from=/search
But, since my CubCadet is pressured oil pump with an oil filter and all, will the oil filter be able to handle the thicker oil? I get that for a splash lubrication for push mowers it might be fine.
Last edited:
The oil filter will handle it just fine. Been running nothing but Rotella or Delvac 15/40 for many years in OPE down here along the gulf coast.
As stated above, it is the new 30wt. Available all over and relatively inexpensive.
As stated above, it is the new 30wt. Available all over and relatively inexpensive.
My 2 JD JX75 6 hp pressure lubed Kawasaki powered mowers from 1998. Both have had Rotella 15w40 T5 for years and still run fine. Same for my 26 year old JD LX 188 liquid cooled Kawasaki 501V. HDEO is fine for OPE!
I ran Shell 10/30 dino in my Honda motor for 15 years no issues 5 QT jug is finally finished. Now using Ace straight weight 30 only because I got it cheap so far so good oil level is still full