Has 5w40 Castrol formula changed recently?
- Thread starter MK5Rabbit
- Start date
AutoMechanic
Site Donor 2024
I think either one should do fine as long as the climate is ok to use either one. I’d shorten your intervals to 5K 
Nah, I’m going to stick to what VW calls for. 10k. Thank you.I think either one should do fine as long as the climate is ok to use either one. I’d shorten your intervals to 5K
AutoMechanic
Site Donor 2024
That’s not always best. I would never go over 5,000 I’m just trying to save your engine. I worked for Toyota and 10k oil changes are because they don’t care about it after warranty.
After owning 5 VW and 4 of them had 300k-400k before I retired them, VW has been good to me when it comes to how to care for them.
Has the Edge 5W-40 formulation changed? Quite possibly. Noack must have gone down in order to be eligible for MB 229.5 approval.
With that said, an oil does not need to use Group IV oil base in order to qualify for MB 229.5 approval. Do we know if current Edge 0W-40 contains any group IV?
With that said, an oil does not need to use Group IV oil base in order to qualify for MB 229.5 approval. Do we know if current Edge 0W-40 contains any group IV?
5W40 is GrIII, KV100 lowered from 14.2 to 12.8. Highly doubt HTHS is above 3.6. Pretty much they made 5W30 oil and in that way lowered Noack. Also, pour point improved to -45, so probably bit better GrIII used.
0W40 is 25-50% PAO, KV100 13.3. HTHS probably around 3.7-3.8.
it’s not the best either to go with a oil that doesn’t meet the specs VW calls for either. We use Castrol 0w20 that meets VW spec. I wouldn’t use any 0w20 in these new VW’s or I’d be fired
You can use them interchangeably.
Finding one to be better than the other in service would truly be splitting hairs.
So noble.
What problem does his engine have that it would be "saved" by cutting the OCI in half?
Hermann
Site Donor 2023
Had my oil changed the other day at a Ford Dealership during recall work. The invoice I received still shows a recommended 3000 mile OCI with the Ford SynBlend oil. This is a very old school dealership. I normally avoid this service department, it just creeps me out for some reason.
Do we know for sure that this is still the case today?
Latest pds say so.
Very wise relying on your own experience and knowledge instead of advice given by a 19 year old kid on the internet.
Right, this is my first 2.5 07k that’s why I was looking into oil.
All other motors were 2.0 8v. **** reliable.
AutoMechanic
Site Donor 2024
Hey my advice is solid. I’d take advice from a mechanic before I would another owner.
I also have and have had VW's over the years. I do a 10k interval on them all now. The old 1.8 with the small capacity got 3k intervals. I have historically used Red Line 5W30 Euro, Red Line 5W30 High Performance or Ravenol VMP. Recently I have been transitioning to Mobil 1 5W30 ESP. The 504/507 specification is pretty dang robust. I won't buy Castrol because if there is a corner to be cut......imo.
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