Pros
- good marketing
- available almost everywhere
Cons
- Many reports of Castrol causing sludge.
- good marketing
- available almost everywhere
Cons
- Many reports of Castrol causing sludge.
IMHO:
Castrol Mineral oils - stay away.
Castrol Full Synthetic oils - good quality.
Good mineral alternatives:
I have heard many a negative comments about the Castrol oils, but not about the listed oils.
Why take the chance, then?
Castrol Mineral oils - stay away.
Castrol Full Synthetic oils - good quality.
Good mineral alternatives:
- Caltex Delo400
- Shell Helix Ultra Diesel
- Shell Rimula
I have heard many a negative comments about the Castrol oils, but not about the listed oils.
Why take the chance, then?
I will go with delo400 next time, does it mean that i have to drain the gtx diesel oil after just 1860kms as adviced by a workshop? 
You will have to make that call, but I would not have.PIRI D-ID wrote:I will go with delo400 next time, does it mean that i have to drain the gtx diesel oil after just 1860kms as adviced by a workshop?
One sump full of a specific oil (which in this case does actually comply with the required spec) should not be a problem. Long-term use might cause some problems though.
PS Many users swear by Castrol GTX Diesel, so I don't think it is outright "bad".
IMHO there are however oils with a better reputation available, albeit at a higher cost.
