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Originally Posted By: JFAllen I've been using this oil ... I guess you write about shell, but please confirm that ?

engine oil for VW 1.8tfsi (0w30, API SN, ACEA A3 v C3) and these two are taken into account. I know that shell is vw504 and ravenol vw502 but I keep 15000 km intervals so you can use any of them. Looking at the voa, I have a question: will Bor compensate lower levels of Zinc and Phosphor ?

Good motor oils have high boiling temperature and poor one's low. The problem is, that poor oils starts to boil and evaporate at lower temerature & they almost never make sludge at this test. "Better oils" with higher eveporation temp start to make sludge & these tests show us nothing

So, what are the advantages of 504.00 oils ?

Originally Posted By: riggaz At 10 - 15kkm oil changes i'd go for the fixed interval servicing. 5w-40 vw 502.00 I think the same. What are the real differences between 502 & 504.00 when changing oil every 15kkm ? (saps, TBN)

What is better in your opinion: 504.00 0w30 (SHELL HELIX ULTRA PROFESSIONAL AV-L 0W30) or 502.00 0w30 (TOTAL QUARTZ 9000 ENERGY 0W30/ELF EVOLUTION 900 FT 0W30) oil both changed about 10-15000km ?

I saw 504/507 oils with high % of PAO (statoil, neste, millers) so there are some

Originally Posted By: riggaz Are you on longlife servicing? yes, ecu estimates oil change at about 22000km

Originally Posted By: 901Memphis Redline oils are synthetic, but more importantly than base oil composition would be specifications and builder approvals. You can easily find an oil claiming to be a real synthetic but that doesn't guarantee anything better than an oil meeting the correct specs...

Do you have an example of fully synthetic (group IV or V) VW 504.00 motor oil, because all I see are hydrocracked and I wonder if there is any ? Now I use Shell Helix Ultra Professional AV-L 0w30 (other name Pennzoil Platinum Euro LX SAE 0W-30) for 1.8tfsi VW engine

Originally Posted By: 21Rouge Anyone know of 507 oils with a VI in say the...170s? I use Shell Helix Ultra Professional AV-L 0W-30 with specifications: ACEA C2, C3; VW 504.00/507.00 and it's VI=204