Recent content by Hujan

Originally Posted By: Shannow Originally Posted By: Hujan I'm curious your thoughts on the original question in this thread, specifically whether there's any advantage or disadvantage to an ester-based oil like Motul, all else being equal (weight, additive pack, etc.). I suspect you'll say it's...

Originally Posted By: Shannow Originally Posted By: Hujan Thanks for that link. That video is pretty awesome. It was neat tot see the side-by-side of the different oil weights try to pour in that super cold temperature. It almost looked like you could break a piece off of the last one. I do see...

Thanks for all the posts, everyone. This thread has been very educational for me and I'm glad I started it. It's definitely redefined how I look at some things, "cold" start in particular. One quick question that is not meant to be argumentative; I am genuinely curious: If the "W" numbers are...

Originally Posted By: Shannow I quite like these Esso videos, on cold start. It's been misinterpreted on BITOG and elsewhere that these videos "prove" that a 0W always "flows" better than the other W grades. The actual takeaway from the video starts at about 2 mins 30 seconds. Note, that...

Originally Posted By: dailydriver Originally Posted By: Hujan Originally Posted By: Shannow Originally Posted By: Leonardo629 Hujan, since you are willing to consider 300V and its price point, have you considered Mobil 1 racing 0W50? Mobil's data sheet for that oil shows an HTHS of 3.8...if...

Originally Posted By: bobbydavro Wierd as I would have thought these engines won't use lead bearings. Lead was banned years ago in Europe and this is where the S65 is built. What oils are the thicker ones on the UOA. Only one of them looks potentially like TWS Very astute observation. The...

Originally Posted By: Leonardo629 Originally Posted By: dparm Originally Posted By: Leonardo629 Hujan, since you are willing to consider 300V and its price point, have you considered Mobil 1 racing 0W50? Way too much ZDDP. You'd have a lot of problems with long term use of that stuff. Dan...

Originally Posted By: Shannow Hujan, given your concerns, as I mentioned previously, the 15W50 would be a good option too... What's your concern with KV40 ? It (and 15W) won't be an issue in San Diego. Thanks for your post. Regarding KV40, I (perhaps wrongly) regarded the kinematic...

Originally Posted By: BobFout Have you considered Mobil 1 5w50 or 15w50? I hadn't considered those, but I will take a look. Everything I'd read seemed to suggest that M1 0w-40 was their halo product and that the quality of the other grades of M1 was not necessarily the same, though I'm not...

Originally Posted By: Shannow Originally Posted By: Leonardo629 Hujan, since you are willing to consider 300V and its price point, have you considered Mobil 1 racing 0W50? Mobil's data sheet for that oil shows an HTHS of 3.8...if true, I wouldn't touch it with a stick. That's my exact...

Originally Posted By: d00df00d Where did you see that TWS has a "stable" HTHS of 4.5? Edit: Nevermind, "dparm" beat me to it.

Originally Posted By: Shannow Originally Posted By: Hujan It sounds like both of you actually like the Castrol TWS in this car. If so, I'm curious what you think might be behind the widespread premature bearing wear in these engines (taking as true that it exists). I've got no dog in the fight...

Originally Posted By: d00df00d Here's a question: is there any engine with comparable piston speeds and internal stresses that DOESN'T eat bottom end bearings at a higher-than-average rate? GT3/GT3RS?

Originally Posted By: bobbydavro Auto stop technology could be a potential reason. Many OEMs have moved to polymer bearings. I'm not so sure that explains these results. The auto start/stop feature didn't show up until sometime in MY 2010 and it is disabled by default. I don't know anyone who...

Originally Posted By: Shannow Following on from bobbydavro... Big ends get their lubrication passing through the mains. I'd be disinclined to choose an oil that provides lower oil pressure at high revs, as there will be less available to overcome some of the forces that reduce flow to big...