5-30w mobile1 extended performance. please advice.

Huan'z

im about to hit 3500 anyway im planning to do the change oil every 3500. so what is the best choice for our z?

Xan

I would go with Redline, it's ester based, so group V oil.
I believe Mobile1 EP is group IV or even III.

__________________

gumpy

OP, Xan's giving good advice here, there are reasons why you want to use an ester based oil. Redline is used by heaps people on this forum including the forum owner AK, if you can get your hands on some it would be one of the best choices for your z. No one can really say which is best... you'll start threads that go for 15 pages with name calling and flaming if you ask that type of question too often... The oils I've mentioned in my first post to you are oils within the top end of the motor oils available. There are other good ones as well of course... however, both at this forum as well as the specialist forum of BITOG, redline seems to have an extremely good reputation.

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...

__________________