The Hornet Posted January 28, 2005 Share Posted January 28, 2005 Here here ^^^^ couldn't agree more.. Quote Link to comment Share on other sites More sharing options...
oilman Posted January 28, 2005 Share Posted January 28, 2005 I rechecked the OATS database this morning to see if there were any notes attached to the basic 10w-30 or 10w-40 recommendation and here's a C&P of what it says. Engine oil viscosity recommendations (prior to model year 2000): 10W-30, 10w-40, 10W-50, 15W-40, 15w-50, 20W-40, 20W-50. 20w is better for warmer climates than the UK. The important thing is sae 30,40 and 50 are recommended, not sae 60. This info is from OEM. Cheers Simon Quote Link to comment Share on other sites More sharing options...
Getrag Posted January 28, 2005 Share Posted January 28, 2005 Getrag it's probably the RS they will use... Just say to Marc you'd rather use Silkolene Pro S 10w50 and if he doesn't have any then supply it yourself next time. Thanks Brian, I will see how this is now (its in anyway) and go the Silkolene next time Quote Link to comment Share on other sites More sharing options...
martynb Posted January 28, 2005 Share Posted January 28, 2005 I very much appreciate the insight oilman has given us into why some oils are better than others even though they look the same on the tin. ISTR Silkolene oils are very highly thought of in the motorcycle world where levels of tune regularly exceed that achieved in the car world. PS. It's simpler in the Porker world, they simply approve the oils you should use by name and/or detailed spec and you can't really complain if you use something else and it goes bang. Quote Link to comment Share on other sites More sharing options...
oilman Posted January 28, 2005 Share Posted January 28, 2005 Indeed I have a list and we stock many Porsche Approved oils. We also have a deal with the mighty Porsche Owners Club GB. Cheers Simon Quote Link to comment Share on other sites More sharing options...
michael Posted January 28, 2005 Share Posted January 28, 2005 This info is from OEM. As asked above how does the requirement change on an older vehicle (say 90,000 miles) with higher boost and other supporting mods to give 400bhp+ that is used on trackdays on a regular basis rather than posing around the streets? A standard car given 'normal' use would use "x" - would the 'abused' vehicle still be OK with this or would you recommend a different formulation? I'm guessing that the stuff recommended for normal use has a slight overkill factor which would cover the extended thrashings but if you could offer your comments on this I'd be grateful. Quote Link to comment Share on other sites More sharing options...
oilman Posted January 28, 2005 Share Posted January 28, 2005 If the older vehicle is in good nick then no need to change the recommended viscosity. Mods are a different thing and generally it depends on the engine temps that you are running. Synthetic oils that contain pao/ester have much better thermal stability than petroleum oils so you can still use lower viscosities like 5w-40 or 10w-40 keeping the oil within the manufacturers specs without suffering from the oil thinning within a couple of thousand miles. This is why the oil also lasts longer. This is a real email that I have permission to publish but names witheld and it illustrates the point I'm making about low viscosity synthetics in stressed applications. Basically the quality of the oil is the key here and it's fair to say you get what you pay for always as decent oils cost more money to make. From: xxx Sent: 07 May 2004 16:16 To: Rowland, John Subject: Peugeot Cosworth - result! John Just a note to let you know I've heard from xxx - the rally driver with the 300+bhp Peugeot-ice-racer-bodied hybrid with the normally asthmatic Cosworth in the back. Prior to you taking over, he used to have to strip the engine after every event (normally 45 miles, he couldn't get it to last for a National event of 70-80 miles) and change the big end bearings every time. He'd been everywhere and tried everything (including Halfords!), and couldn't solve his problem. First off, he was really surprised when you asked to look at the bearings, as no-one had ever asked! He was equally surprised by your recommendation to go thinner, and also, I have to say, worried. He equated 'thickness' with 'better protection'. I eventually persuaded him to try Pro S 5w/40, as you suggested. He called me to say he'd stripped the engine this week, after it's FOURTH event (approx 200 competitive miles!), and there isn't a mark on it. He is utterly delighted, and asked me to pass on his thanks for all your help and expertise. I'd also like to add my thanks to you. He is extremely influential in competition circles, and is now going to tell the world and his wife what, and who, sorted this problem. Once again, many thanks Regards Hope this helps, any more advice needed, just ask. Cheers Simon Quote Link to comment Share on other sites More sharing options...
martynb Posted January 28, 2005 Share Posted January 28, 2005 Indeed I have a list and we stock many Porsche Approved oils. We also have a deal with the mighty Porsche Owners Club GB. Cheers Simon I'm not a member of the club they are a bit up themselves for my liking You'll no doubt be surprised to hear my 996 NA is swimming in Mobil 1 0-40 at the moment - what is the non-member's price please? Not sure how much I have left in the garage at the moment. Quote Link to comment Share on other sites More sharing options...
oilman Posted January 28, 2005 Share Posted January 28, 2005 I'm not a member of the club they are a bit up themselves for my liking You'll no doubt be surprised to hear my 996 NA is swimming in Mobil 1 0-40 at the moment - what is the non-member's price please? Not sure how much I have left in the garage at the moment. Mail me at [email protected] and I will forward a price list on to you. Cheers Simon. Quote Link to comment Share on other sites More sharing options...
CJ Posted January 28, 2005 Share Posted January 28, 2005 On the subject of oils, if anyone on here wants advice from an expert on "Baby Oil" and its optimum uses, give me a shout I am a past master on the subject!!! Quote Link to comment Share on other sites More sharing options...
Guest KARacing Posted January 28, 2005 Share Posted January 28, 2005 I am using TRD Super Racing PRO 5W-40 Quote Link to comment Share on other sites More sharing options...
Sheefa Posted July 29, 2018 Share Posted July 29, 2018 Bumping thread as discussing oil in another. Quote Link to comment Share on other sites More sharing options...
michael Posted July 29, 2018 Share Posted July 29, 2018 Jeez, some of us are trying to forget walking away from all this Quote Link to comment Share on other sites More sharing options...
Sheefa Posted July 29, 2018 Share Posted July 29, 2018 Jeez, some of us are trying to forget walking away from all this Wtf are you doing alive mate haha. How are you buddy?! Quote Link to comment Share on other sites More sharing options...
Frank Bullitt Posted July 29, 2018 Share Posted July 29, 2018 (edited) The Millers Oils Nanodrive CFS 10w-50 NT+ is supposed to have a VI of 177 and HTHS of 4.80. Edited July 29, 2018 by Frank Bullitt (see edit history) Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.