PYB SAE 30 or Rotella SAE 30 for push mower?

[53' Stude]

So, older Troy built lower self propelled. Haven't changed oil in it for 4.5 years. Have some straight 30 and tons of PYB 30&40 straight grade. Which would you folks use? Thank you in advance
Andrew

 

[old1]

Personally I have been using nothing but conventional PCMo straight #30 oil in my and my customers mowers for over 40 years. Summer use only of course. Snowblowers get 5w30.

 

[53' Stude]

Thank you good sir! ;-)

 

[old1]

Of course at the same some old rattly smoky machines get 40 or even 50 wt.

 

[Donald]

I think any old 30 weight oil would be fine. Not much cutting grass in cold weather. And for me not much cutting grass if its super hot out either, but more of an operator issue than a mower issue.

 

[Donald]

While your changing your oil, blow out all the dried grass and mouse nests clinging to the engine cooling fins. Might be more important than what oil your using.

 

[53' Stude]

Thanks guys and Donald ;-). I am doing this this week probably Thursday

 

[beast3300]

I have used many oils in a push mower including PYB 30, FS 30, and T5 10w30 Rotella Blend. The last 3 years I have used the T5 and change it once a year. It is in amazing shape every time I drain it. It is almost brand new looking throughout it's service (1 year/ used in the summer).

 

[53' Stude]

Thanks beast3300. I may use that since I have tons of it in the stash

 

[jhellwig]

Just make sure it has the proper level of some form of engine oil in it and it will be fine.

 

[53' Stude]

Thanks, I'm sure I can handle this

 

[dlundblad]

I would think the Rotella would have a more robust add pack since it's for diesel engines as well.

Using that would give me the warm fuzzies, but both will work great.

 

[53' Stude]

Thanks DLundblad

 

[stchman]

If your mower takes 30wt oil then any 5W-30 or 10W-30 oil for a car will work just fine.

 

[JR]

have used everything from 0/5w-20 to sae50 and a/v 30/40 25w-60 in ope's over the years thousands of hours never a bang yet.



-harvey

 

[53' Stude]

So far after over 4 successful cuts at the parents rental, the Rotella that's in there is performing flawlessly. Mower has not used a drop

 

[Errtt]

I'd use either one myself, both are good. Maybe I lean a little more toward Rotella with a robust add pack for my mower & generator. Calls for 10-30 on both. I use Rotella 5w-40 or 15w-40 though.

 

[Merkava_4]

Originally Posted By: car51
It's the OP's car and I think he should use what HE feels like.


Yeah, use whatever oil you feel like. Don't listen to us.

 

[53' Stude]

Merkava: you would be proud of me today, I put some of the circa 1980's HD-40 Pennzoil in the aunts GOODALL push mower. It's really smooth and runs great!

 

[Warstud]

Originally Posted By: car51
Haven't changed oil in it for 4.5 years.


I think your mower would be happy if you just changed it.