Thread: Valvoline Synpower 5W-40 in TD5

5w-40 is to thin for a td5 at least a 10w, desiels dont like thin oil too much, apart from that ive heard its good stuff.

Land Rover Discovery Series II Owners Manual 2003MY

Publication Part No. LRL0545AUS - 2nd Edition
© Land Rover 2003

Engine oil - Diesel engines
Use a 5W/30, 5W/40, 5W/50 or 10W/40 oil meeting specification ACEA: A1 and B1, and having a
viscosity band recommended for the temperature range of your locality.

Engine oil temperature ranges
5W/30 will protect from -30ºC to 35ºC.
5W/40 will protect from -30ºC to 50ºC.
5W/50 will protect from -30ºC to 50ºC.
10W/30 will protect from -10ºC to 30ºC.
10W/40 will protect from -10ºC to 50ºC.
10W/50 will protect from -10ºC to 50ºC.
10W/60 will protect from -10ºC to 50ºC.

use HPR diesel 5 here... 5w / 40 i think.... fantastic stuff as recommended by tombraider

dont know about the valvoline tho...

shouldnt you run diesel specific stuff in the td5? or is it?

Thanks

Steve

Originally Posted by RRV80

5w-40 is to thin for a td5 at least a 10w, desiels dont like thin oil too much, apart from that ive heard its good stuff.

Oh boy, totally wrong.
Now where did I out that post on how the SAE ratings work ??

Originally Posted by BradM

Anyone using Valvoline Synpower Full Synthetic 5W-40 in their TD5? I have been told it is the good gear. I used to run Valvoline exclusively in my chev small blocks and nissan patrol, never had a problem.

Anyone used/heard about the Synpower? Comes at $55 a 5l pack, Pilbara Pricing which seems pretty good for up here.

BradM

as long as it has the relevant ACEA ratings and has at least an API CF light diesel rating it will be fine, although I prefer a dedicated diesel oil (latest spec available in Oz is CI-4+), particularly if you will be using the recommended 20,000km OCI's as the diesel oils have a more robust additive package, but 5W-40 diesel oils aren't excatly bursting forth from the parts store shelves, either.

Valvolene make some good dedicated diesel oils. They work in with Cummins in developing their lubricants and are what Cummins recommend in their engines.

The Valvoline you know what I mean works a treat here.

Cheers

I work at a chrysler/jeep place, we use exclusively valvoline. Synpower in the latest engines with the extended service intervels. Seems to be ok.

this is from another post a long time ago.
I also need to add that the dedicated 5w-40 diesel oils conform to the higher HTS numbers, ie. 3.7 rather than the minimum 2.9.

The xW part of of the SAE oil viscosity range relates to its pumpability at various temperatures below 0*C
If you had two oils, a 15W-40 and a 5W-40, at 100*C they must fall in the 12.5-16.3 centistoke range (a centistoke, or cSt is a measure of viscosity, and FWIW, most xW-40's are usually around 14-14.5 cSt @ 100*C)
Below 0*C, the 15W-40 is allowed a maximum pumping pressure of 3500cP @ -15*C, and the 5W-40 is allowed the same maximum pumping pressure at -25*C. If it was a 0W-40, it would only be allowed a maximum pumping pressure of 3250cP @ -30*C !
At 0*C, there isn't much difference between a 0W and 10W, and at operating temps, there is hardly any difference at all, in fact, if you look at the specs for various brands, I've seen some 0W-30's with a hot viscosity close to 12.5 cSt (the old Castrol SLX 0W-30, made in Germany) vs only around 10cSt for Mobil 1 10W-30 !

Please look at this chart.