5-30w mobile1 extended performance. please advice.

Xan

Yeah our engine runs pretty hot and Ester's are very shear resistant... Which means it maintains it viscosity at high temperatures...

On the filters, from another post I made earlier;

From what I understand the Puro has a finer filter but this comes at the expense of flow rate (though still within SEA standards). Now the bypass pressure on the Puro is also somewhat higher then the K&N.
So allthough it filters better just from a filter performance point of view and therefore does good in tests, I'm wondering how good it is for our engines, especially when you drive them under high load for a longer time.

I wasn't able to find the exact specs for the two different filters and I don't know if this is correct, but this is what I found for similar filters:

Purolator PureOne PL34631
* Average largest pore size: 42 µm
* Smallest pore size: 10 µm
* 30W 70F Oil flow @ 10psi: 5.3 oz per minute

K&N 3002
* Average largest pore size: 63 µm
* Smallest pore size: 27 µm
* 30W 70F Oil flow @ 10psi: 14.7 oz per minute


So there I would go with either one based on how you drive;
- during break in I would go with a Puro,
- then after if you drive it hard a lot I would use a high flowing K&N
- if you drive more modest I would go with a Puro for filtering more.

These are of course all just my opinions...

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