As per most oil manufacturers these days Castrol NZ have lube guide on their web site as well as a SMS text service. You put your rego plate in & it recommends oils for you. I thought I give it a go & it came back with Magnatec 10w-40 for my car?? I was horrified (I'm not a fan of 10w-40 semi) the factory spec is 5w-30/10w-30 for the 3SGE. I emailed their technical team to ask them why & this is the basic response I got
Quote:
As he mentioned from the chart that you sent through, the ambients in NZ are higher which is why we recommend a Magnatec 10W-40 over the EDGE 5W-30. Using the EDGE product over the Magnatec is not incorrect and you shouldn’t experience any problems by using this, it is just not our primary recommendation for your vehicles.
Here's the page from my owners manual.
I don't understand how they think a GII 10w-40 with a VI of 151 is going to protect better than a GIII 5w-30 with a VI of 165. Not to mention the Magnatec has a KV @ 100°C of 14.4 over the Edge's 12 which puts additional drag on the engine & VVTi system.
I did try Edge 0w-40 last summer & it was way too thick & made the engine really sluggish.
Quote:
As he mentioned from the chart that you sent through, the ambients in NZ are higher which is why we recommend a Magnatec 10W-40 over the EDGE 5W-30. Using the EDGE product over the Magnatec is not incorrect and you shouldn’t experience any problems by using this, it is just not our primary recommendation for your vehicles.
Here's the page from my owners manual.
I don't understand how they think a GII 10w-40 with a VI of 151 is going to protect better than a GIII 5w-30 with a VI of 165. Not to mention the Magnatec has a KV @ 100°C of 14.4 over the Edge's 12 which puts additional drag on the engine & VVTi system.
I did try Edge 0w-40 last summer & it was way too thick & made the engine really sluggish.