Thread: TD5 Oil Report.

Originally Posted by discorevy

Just to correct this little "pearl" of internet wisdom.

The TD5 injectors are just an EUI ( Electronic Unit Injector ) which do not place unusually high shear loads on the engine oil, as they use a plunger directly on the fuel.

This has probably been confused with HEUI ( Hydraulic Electronic Unit Injector ) as found in CAT, Ford Powerstroke, and some other heavy diesels ( in which case an ACEA "E" rated oil is best).

These HEUI injectors do place high loads on the oil, due to the fact it is used under very high pressure to power the injector.

So the viscosity break down likely the result of oil temps?

As I've said it was hot, particularly on a couple of days with the engine running around 100 to 105 (max) for the high speed highway days. This isn't typical for this engine and I believe it was due to a soft clutch fan which has since been replaced.

The previous oil sample which was only 2000k and over the cooler months didn't show the viscocity breakdown.

Originally Posted by discorevy

I'm not a Tribologist, just an aging mechanic, however:

105 degrees is hotter than normal, but a decent oil shouldn't lose that much over 5000k.

A lot of Workshops tend to use oils that will yield the largest profit margin.

The oil in question is rated C3, which has lower SAPS to protect filters found in DPF's , which you don't have, they also don't have the levels of zinc required for a TD5.

API rated oils don't have testing parameters as stringent as ACEA, this is one of the reasons why Budget and Boutique Brands don't have the ACEA standards listed, that's not to say it isn't good.

If yours is only a trip car, then this is an easy life as it spends most of it's life at operating temp ( when the cooling system works properly ), in which case a winter weight of 15 may be ok in higher ambient temps, but why reinvent the wheel.

10 000k intervals are fine with a good 5w40 ACEA A3/B4 and/or E7 oil ( both ratings in the same oil are good )

Make sure both oil filters are changed at the 10 000k change.

I don't know of the above oil.

Thank you for the considered reply. You would think Valvoline synpower 5w/40 would be up for it would be classified as a "good oil" and would be up for it but alas.

I did let them know that I don't have a DPF, Cat, or EGR (whoops.. well it's in the shed and I keep the car in the garage). It's a modern oil for sure so has to cater to these issues.

I'm not surprised you haven't heard of that oil.. it's blended in a shed up here. The advantage of that is they probably don't have all the overheads and retailer margins to contend with of the big guys. So I think it's possible that they could use higher quality ingredients. If Supercheap can sell it on special for $1 a litre and still make margin, and all the other overheads... the other stuff at just under 20/l.. and selling direct they should have more ability to use better ingredients.

I have emailed them and asked for the zinc content.