I know there have been other discussions on the Jaguar specific oil (Castrol Edge Professional E) meeting the spec STJLR 51.5122, but I wanted to revitalize the discussion. I recently went to my local Jaguar dealership and they advised they are out of stock on that oil, and have been out of stock for a while, and they don't know when to expect more. So I'm searching for an alternative. I use Amsoil in all my other vehicles. The Amsoil "EZT" which is 0W-20 European is an ACEA C5 oil that seems to be comparable but doesn't say it meets the Jaguar / Land Rover spec. I also found the Redline 0W-20 which actually says it meets the STJLR 51.5122 spec. I'm not really interested in using some of the other brands that meet the spec like LiquiMoly (I just have no experience with that brand, and haven't heard much about it). I compared the product data sheets of all three of these oils (Redline, Amsoil, and Castrol) and they seem very comparable (attached). Although the Castrol does have some impressive numbers and seems like a great oil. Of course the additive packages aren't as easy to find and I don't really know what to look for.
The vehicle's engien is a Supercharged 3.0L V6, Direct Injection. The car is a daily driver in all weather. Outside Temps could be as low as -10 or -20F, but more normally something like the 20's and 30's, and as high as 95 to 105F in the summer.
I'm not super technical with this stuff like many people on BITOG are (hence the reason I'm posting)... so my interpretation is that the only benefit to the OE Recommended Castrol is that it has more flowability at VERY low temperatures, but may suffer a little at higher temperatures. Any other differences you experts can point out to me? Anyone see why I couldn't use the Amsoil 0W-20 European "EZT"?
The vehicle's engien is a Supercharged 3.0L V6, Direct Injection. The car is a daily driver in all weather. Outside Temps could be as low as -10 or -20F, but more normally something like the 20's and 30's, and as high as 95 to 105F in the summer.
I'm not super technical with this stuff like many people on BITOG are (hence the reason I'm posting)... so my interpretation is that the only benefit to the OE Recommended Castrol is that it has more flowability at VERY low temperatures, but may suffer a little at higher temperatures. Any other differences you experts can point out to me? Anyone see why I couldn't use the Amsoil 0W-20 European "EZT"?