JoeyEunos Posted April 28, 2016 Report Share Posted April 28, 2016 I know the SDI's take 4.7l right? I've just bought two 4l pails of Castrol GTX 15w40 'high milage', purely as EuroCarParts listed that as being apropriate for my car when using the reg but I'm now thinking it might be too thick and that a 10w40 or 5w30 might be better... Am I right in thinking VW 501 01/505 00 is the spec I need? As always, thanks in advance for any suggestions/advice! Quote Link to comment Share on other sites More sharing options...
Dubster Posted April 28, 2016 Report Share Posted April 28, 2016 The VW codes for the SDI engine oil are VW 505.00, 505.01, 506.00, 506.01, and 507.00 10w40 semi synthetic is probably the best for your engine, but the oil you have bought should be fine, perhaps change it for 10w40 just before next winter? Quote Link to comment Share on other sites More sharing options...
JoeyEunos Posted April 28, 2016 Author Report Share Posted April 28, 2016 ^ Firstly, thanks for the reply I'd sort of planned to do just that (Changing to 10w40) before the weather got colder, and I'll probably opt for Castrol GTX again. I was just curious as to what other folk were using TBH. I must admit that I find it slightly odd and off-putting that Eurocarparts list GTX 15w40 using my reg but not GTX 10w40 given that they're both VW 501 01/505 00 spec... Quote Link to comment Share on other sites More sharing options...
Skezza Posted April 28, 2016 Report Share Posted April 28, 2016 1 hour ago, Dubster said: The VW codes for the SDI engine oil are VW 505.00, 505.01, 506.00, 506.01, and 507.00 10w40 semi synthetic is probably the best for your engine, but the oil you have bought should be fine, perhaps change it for 10w40 just before next winter? No it's not Semi synthetic is a cheap and lazy alternative nowadays and VW have updated their specs for Lupo's including the SDI to suggest now 4.7l of 10w40 fully synthetic in hotter climates, 5w40 fully synthetic in all weather and 5w30 fully synthetic in sub-zero temps. Why use semi synthetic when you can get all the goodness of fully synthetic? As I suggested in the PM Joey, 5w40 fully synthetic is the best for England and the SDI. I also wouldn't put anything expensive like Castrol in. You're throwing money down the drain in my opinion. There's no turbo or anything like that. Decent fully synthetic will piss all over expensive semi synthetic imo. Check your coolant as well. Do all the important things. Quote Link to comment Share on other sites More sharing options...
JoeyEunos Posted April 28, 2016 Author Report Share Posted April 28, 2016 ^ Thanks fella FWIW the Castrol GTX is actually a semi synth and not that expensive TBH, however I'll follow your lead and use 5w40 in future. I'd imagine I'd be safe using the 15w40 for this summer though? I only ask because I've bought it and I'm bloody stuck with it now Quote Link to comment Share on other sites More sharing options...
Skezza Posted April 28, 2016 Report Share Posted April 28, 2016 30 minutes ago, JoeyEunos said: ^ Thanks fella FWIW the Castrol GTX is actually a semi synth and not that expensive TBH, however I'll follow your lead and use 5w40 in future. I'd imagine I'd be safe using the 15w40 for this summer though? I only ask because I've bought it and I'm bloody stuck with it now A hot summer yeah, but I wouldn't like to use 15w40 in a colder climate. Quote Link to comment Share on other sites More sharing options...
JoeyEunos Posted April 28, 2016 Author Report Share Posted April 28, 2016 Thanks again chap! I'm thinking I might stick it in and run for a couple of hundred miles on it and then drain it and re-fill with something thinner, thus using it as (Albeit rather expensive) engine flush. Can't stand the idea of wasting/not using it TBH! Quote Link to comment Share on other sites More sharing options...
Skezza Posted April 28, 2016 Report Share Posted April 28, 2016 You could always mix it with some 5w40 and make multi-multi-grade oil Quote Link to comment Share on other sites More sharing options...
Mobieus_uk Posted April 28, 2016 Report Share Posted April 28, 2016 i read someware that the sdi is so bombproof its happy with just about any oil you put in it, Quote Link to comment Share on other sites More sharing options...
Sarahs Lupo Posted July 13, 2020 Report Share Posted July 13, 2020 is this still relevant ? 2004 sdi owner here with 154k on the clock Quote Link to comment Share on other sites More sharing options...
mk2 Posted July 13, 2020 Report Share Posted July 13, 2020 Yeah. 15/40 or similar is lovely. Quote Link to comment Share on other sites More sharing options...
Martins SDI Posted July 13, 2020 Report Share Posted July 13, 2020 SDI uses 5W40 or 10W40 with VW 501 01/505 00 spec 2 Quote Link to comment Share on other sites More sharing options...
Sarahs Lupo Posted July 13, 2020 Report Share Posted July 13, 2020 always a few answers.. castrol tells me its 5w-30.. any benefits of running the thicker 5w40 ? Quote Link to comment Share on other sites More sharing options...
mk2 Posted July 14, 2020 Report Share Posted July 14, 2020 Thicker means runs slightly quieter at the expense of more viscous oil = slightly reduced engine efficiency. Thicker also maintains a surface oil film for longer on a bearing journal, reducing chances of metal to metal contact. Makes engines last longer. In a nutshell, thicker oil squishes out of the way more slowly compared to runnier oil. But only a by a little bit. It's the additives that make all the difference to good or cheap oil. When it does matter though is when extremely cold. The oil 'snaps' like brittle plastic when shear forces are high, at high RPMs and cold oil. It doesn't flow. Quote Link to comment Share on other sites More sharing options...
Martins SDI Posted July 15, 2020 Report Share Posted July 15, 2020 I use 5W40 since my car was new. Now with 400M Km with no engine problems. 1 Quote Link to comment Share on other sites More sharing options...
Sarahs Lupo Posted July 16, 2020 Report Share Posted July 16, 2020 23 hours ago, Martins SDI said: I use 5W40 since my car was new. Now with 400M Km with no engine problems. 400M i hope thats not Million ? haha Quote Link to comment Share on other sites More sharing options...
Martins SDI Posted July 16, 2020 Report Share Posted July 16, 2020 400 000 Km (250 000 mi) and counting. 😉 2 Quote Link to comment Share on other sites More sharing options...
Sarahs Lupo Posted July 16, 2020 Report Share Posted July 16, 2020 36 minutes ago, Martins SDI said: 400 000 Km (250 000 mi) and counting. 😉 ok ill see what i have in the garage then. Quote Link to comment Share on other sites More sharing options...
mk2 Posted July 17, 2020 Report Share Posted July 17, 2020 On 7/15/2020 at 2:14 PM, Martins SDI said: I use 5W40 since my car was new. A rare owner who still has the same car for 20-odd years. Would love a full list of SDI things that have caused problems or needed extra attention since new. Quote Link to comment Share on other sites More sharing options...
Martins SDI Posted July 17, 2020 Report Share Posted July 17, 2020 (edited) 13 hours ago, mk2 said: A rare owner who still has the same car for 20-odd years. Would love a full list of SDI things that have caused problems or needed extra attention since new. The car itself is an Ibiza 6K2 SDI, but I have had it for 17 years and over this time I have invested a lot in the car. To give you an idea, at this point the car already has practically all the extras that came out for this model (and some that didn't, but that I adapted from other VAG models) and it looks like a Cupra R. it has 280mm in the front and disc braking in the rear. It has a Cupra suspension, with new shock absorbers, bushes, synoblocks, etc., all new. It has an interior upholstered in leather / alcantra, AC, which has already been adapted by me, immaculate painting, etc., etc. This car never gave any major problems, just problems related to normal wear of the parts. I already replace bearings, driveshafts, clutch, bushes, engine mounts, shock absorbers, alternator, etc. But engine or gearbox was never open for repair. Edited July 17, 2020 by Martins SDI 1 Quote Link to comment Share on other sites More sharing options...
mk2 Posted July 18, 2020 Report Share Posted July 18, 2020 Wow! I like to see that for real. Where are you? Quote Link to comment Share on other sites More sharing options...
Martins SDI Posted July 18, 2020 Report Share Posted July 18, 2020 Portugal.😁 1 Quote Link to comment Share on other sites More sharing options...
Skezza Posted July 21, 2020 Report Share Posted July 21, 2020 5w40 in winter. 10w40 in summer. Quote Link to comment Share on other sites More sharing options...
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