Hey oil gurus, I ordered the oil change kit from Atlantic British specifically for the Td6 engine and the oil they sent is spec'ed for gasoline enginges. It is Castrol Edge Professional API SN PLUS 5w-30.

On the back it says that it exceeds
API SN PLUS/SN
ACEA A1/B1, C2, A5/B5
GM Dexos1 Gen2
ILSAC GF-5
Chrysler MS 6395

I've got one quart in, but I don't want to add more if this isn't up to snuff. Unfortunately I didn't see the 'fine print' on the listing
Any advice?

@AirRyan

 

I would stop.

I use MOTORCRAFT SAE 5W-30 F-150 Diesel Motor Oil, it is a ford diesel. ( rockauto or most parts stores)



LR spec STJLR.03.5005
ford WSS-M2C934-B

 

Thats not the petrol engine spec. Neither viscosity nor specs.

 

Well I took a loss on the Atlantic British oil and ordered some JLR spec Castrol from Autohausaz which is local, but they don't offer pick up since Covid started, but I had it the next day. Sucked out the other oil and replaced it. Thanks for the replies.

 

The JLR spec is for a 5w-30 low-SAPS oil, which is almost a boutique spec and not very commonly available. IMO, there are better specs and oils out there. Most modern light-duty diesel specs from VW, BMW, and MB have all called for a mid-SAPS. The difference is only ≤0.5 vs ≤0.8 SA content. The oil above would probably be fine since it is an ACEA C2 and SA is limited to ≤0.8, but there are better oil and oil specs available. The only difference between an ACEA C2 and C3 rating is the HTHS, and I would prefer the slightly higher ≤3.5 in the C3. They are trying to say the lower HTHS can provide the same protection with less resistance for better gas mileage, but I haven't been able to totally buy into that theory yet; call me skeptical whenever I hear about Government pushing an oil spec for better gas mileage.

The GM Dexos2 is actually a spec they call for with their light-duty diesels, (and interestingly enough, Corvette's under M1's new ESP brand in the 0w40 viscosity.) The Ford oil is an FA-4 spec for the 5w-30 viscosity, but even the Ford F150 manual says if you run biodiesel, use a 5w-40 (they suggest a CK-4 like a Rotella T6, but I believe there are even better oils out there for our diesels.) Both FA-4 an CK-4 have minimum SA content of 1.0 and that is a little high, IMO when there are ample amounts of mid-SAPS oils to choose from. Still, my Dad has been running CK-4 Rotella T6 in his Jeep EcoDiesel for 60k miles and counting.

The jury is still out on the JLR SCR/DPF as to whether or not it will last under even the most delicate and discerning selection of fuel, additives, and oil, (that is the $86k science experiment that I currently conducting myself on my own dime.) If the SCR/DPF can't handle a mid-SAPS oil while under warranty, I likely will be forced to ditch the vehicle afterward. I strongly encourage everyone run a quality diesel additive which amongst a variety of things, will increase the cetane and help maximize the combustion resulting in less soot, (and less PM for your DPF to have to burn off.) Any oil with a BMW LL-04 spec is a great place to start, as is also MB 229.52.

 

just get rotella t6 and call it a day. Works great. Read Fords updated specs for the f150 with same engine. Been dragging 8k lbs on the regular with mine and runs great.

 

apologies for resurrecting this thread. I took delivery of a 2020 CPO TD6 today.
During my anticipatory reading, I recall seeing either a screenshot or an actual JLR document stating 5w30 was recommended for normal use, while 5w-40/0w-40 were acceptable for heavy duty cycles.

Do any of you folks recall this document, or a link to it? It would be nice to save it for future reference.
Cheers!

 

I have never heard of this. Will you be doing heavy constant towing?

 

I'm paying over $100 for Diesel #2 every 400 miles. Just under $100 every 8,000 miles for the correct Land Rover spec motor oil is cheap insurance. I've been buying 12-liter cases of the correct Castrol at my dealership but Land Rover spec German Ravenol (RAVENOL J1A1571-005 FLJ 5W-30 Fully Synthetic Motor Oil - LR Jag STJLR.03.5005) is available at Amazon.

 

No towing planned. But I distinctly recall the document classified short trips under "heavy duty" too.
If I end up finding it again, I'll post here for everyone's reference.