Fields Carlisle
Well-Known Member
Whatever oil you use, the most important thing is the viscosity and additives package. There are low-SAPS, high-SAPS, and much more that goes into selecting an appropriate oil. Some companies with great oils don't seek manufacturer approval as they don't have the funds.I don't believe that is accurate. Group IV/V oils are available in USA but they are difficult to find at your FLAPS / McParts, or at least difficult to confirm as Group IV (PAO) and Group V (esters). I use Red Line in all my vehicles besides the LR4, and it's a Group IV/V base stock. Some of the high-end products from Amsoil and Motul are also Group IV/V. Most people don't want to pay the $12-$15 per quart pricetag on these oils. The so-called "fully synthetic" Group III oils available at $6-$8 per quart sound like the same thing for half the price, but they are not the same. I'm not aware of any Group IV/V oil in that price range.
Some manufacturers offer a handful of Group IV/V oils (i.e., Mobil-1) but the vast majority of current Mobil-1 products in USA are Group III. Worse yet, only a few viscosities are offered by Mobil-1 in Group IV/V; so they aren't an option for my needs. As always, YMMV, etc. A bit more info on base stocks is at this link:
https://en.wikipedia.org/wiki/Synthetic_oil
About the Liqui Moly AA oil, yes, as I wrote in my previous post, it is not "approved by JLR. However it is "recommended" by Liqui Moly. And yes I understand those are 2 different things. I simply found it interesting that Liqui Moly shows four different products as suitable for the AJ133 5.0L engine used in the LR4 V8; while only one of them is supposedly approved by JLR.
Looking at Redline's oils... It's hard to tell if they are claiming 100% PAO or esther oil, or if it is just predominately esther-based.
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