Originally Posted By: Doug Hillary
Hi,
Hi,
juankimalo - You have a great Porsche Forum in Spain!
IMO for the M96 engine in particular you are best to use a Porsche Approved lubricant!
This especially applies to viscosity including low temperature cranking and pumping viscosities
If you chose not to then you should consider these things;
a) a minimum HTHS vis 3.5cP (perhaps inadvisable to go above 4cP)
b) a minimum viscosity @ 100C 11.3cSt (used lubricant)
c) the lubricant must have antifoaming abilities similar or better than Approved lubricants (multilple oil pumps)
d) during extended viscosity testing (Porsche - ACEA test protocol) it must show that the lubricant meets/exceeds Porsche requirements
The other matters (cleanliness and etc) are noted by Porsche
Redline is probably not worth the money in this (M96) application - Porsche Approved lubricants do the job very well indeed
I received yesterday Redline 5W40 price list. It's an imported oil, so It's too expensive, though in this SAE grade, they recommend it for Porsche.
What I don't understand is why Porsche included M1 5W50 in the approved list. It's the only 5W50 viscosity grade approved as you well know.
Valvoline VR1 5W50 (european formulated) is very similar in specs to M1. That's why I used it.
Nevertheless, I'm going to use it again for a very short interval. I sent a virgin oil sample to the laboratory to be analize, and compare to the UOA.
18,0 viscosity @ 100º C must be the real viscosity as Valvoline says... let's check it...
My private Porsche specialist is a very well known and prestigius mechanic in Spain. He always uses Valvoline Synpower 5W40 (approved list). Other choices would be Motul X-Cess 5W40. (I'm not going for using Mobil 1 0W40 as it's not proper for hot climates). What do you think about them?.
Thanks in advance Doug. I'll show you the virgin oil analysis report, as soon as I'd receive it, and thanks again for your comments about Soloporsche. We have a lot of users trying to solve the IMS problem. One of them developed INSARO (
www.insaroims.com), and there is a group called "The Ring Community" developing a new IMS bearing solution to give it as free to everybody:
(Is the language is a problem , just look at the pictures)
http://soloporsche.com/showthread.php?t=44411
Regards from Spain.