Originally Posted by badtlc
Originally Posted by weasley
Originally Posted by badtlc
Originally Posted by superangrypenguin
That said, it seems like buying Castrol Professional LL IV FE is the only way to go.
Interesting as this is the exact oil my local Mazda dealership has used since 2011 or so. Green 0W-20 Castrol professional LL FE.
The details are important. The Longlife IV spec (VW 508 00/509 00) is only a couple of years old so nothing was being sold for it in 2011.
I would bet money VW wrote the spec around the oil. The oil hasn't changed.
Oils are developed to meet specs. Sometimes the oil developer and the OEM work together, sometimes the OEM goes it alone. I've never known a new spec to be written around an existant oil.
The LL IV oil you mention post-dates 2011 by some margin. Which oil do you mean by "Castrol Professional LL FE", because that specific name never existed... there are some details missing.
Originally Posted by weasley
Originally Posted by badtlc
Originally Posted by superangrypenguin
That said, it seems like buying Castrol Professional LL IV FE is the only way to go.
Interesting as this is the exact oil my local Mazda dealership has used since 2011 or so. Green 0W-20 Castrol professional LL FE.
The details are important. The Longlife IV spec (VW 508 00/509 00) is only a couple of years old so nothing was being sold for it in 2011.
I would bet money VW wrote the spec around the oil. The oil hasn't changed.
Oils are developed to meet specs. Sometimes the oil developer and the OEM work together, sometimes the OEM goes it alone. I've never known a new spec to be written around an existant oil.
The LL IV oil you mention post-dates 2011 by some margin. Which oil do you mean by "Castrol Professional LL FE", because that specific name never existed... there are some details missing.