So the Euro6 Twinair engine uses Selenia Digitek Pure Energy 0w30 C2 engine oil. I've read elsewhere that C3 oil is better than C2 (could be wrong) so I just wondered if there was a better oil (which is also easier to get hold of) than the Selenia Digitek?
Technical Is there a better oil for Twinair?
- Thread starter Jaseone
- Start date
Currently reading:
Technical Is there a better oil for Twinair?
A C2 is a 0W30 and a C3 is a 5W30 oil.
I would not put anything else in it, then Petronas Selena.
That's not quite correct. The 1.2 specifies a C3 oil and it is a 5W-40. The TA only requires a C2 with 0W-30. The viscosity and the C spec are different things. C3 oils are for engines with DPF's, three way cats etc, a low ash oil i think.
Selina oils have been criticized before for leaving a hard carbon like glaze in the head and around valve seals. It's down to the additive package, i know a couple of Alfa owners that hate the stuff. My own feeling is the oil change length is asking for trouble, the oil will be degraded by the time it's due. Use a quality oil of the right spec and viscosity and half the recommended mileage or time.
Not sure as yet, I'm still researching different oils, I'm sure there will be plenty of oils at the correct spec for our cars.
- Joined
- Jan 18, 2017
- Messages
- 357
- Points
- 114
My choice is this for my 61 plate TA.
Looks like the oil that I'll use too
My choice is this for my 61 plate TA.
Hi,
If the manual specifies a zero weight oil (0W-40) you should not use a 5W-40 and certainly not a 10W-40 oil.
I think (someone will correct me if I'm wrong) that the multi-air oil waieight was changed from 5W-40 to 0W-40 (or maybe 10W-40 to 5W-40) because of issues with the thicker oil.
Mobil 1 ESP 0W-40 is one choice and meets Fiat 9.55535-S2
Robert G8RPI.
Mobil 1 ESP 0w 30 is C2 spec, but you need a look in person or use magnifier on pics on auction site to look at the label. Total, Castrol Edge H (produced for Honda) also appears to be similar. Total apparently still used by Citroen and Peugeot dealers if that helps.
Why does the TA require a C2 & the old 1.2 Fire unit specify a C3? The Fire unit is hardly an oil burner whereas the TA is noted to use oil for a few thousand miles, seems the specs are the wrong way round!!!
Hi,
The difference between C2 and C3 is the SAPS (Sulphur Ash and Phosphorus) content. C2 is mid SAPS and C£ is low SAPS. This is more to do with emissions control equipment such as catalysts an DPFs than the engine itself. Sulphur and Phosphorus improve lubricity (many will remember the strong smell of "EP" gear oil caused by added sulphur), mainly by surface modification, but can poision catalytic devices. C2 tends to be specified for later catalytic conveters and early DPFs and C3 for the latest designs. Thus if the emissions control devices are OK with it C2 is better for your engine.
Robert G8RPI.
Last edited:
More or less what i asked. The 1.2 surely won't be using the latest cats etc whereas the TA will???
Twinkletwinklelittlestar
New member
- Joined
- Jan 25, 2017
- Messages
- 67
- Points
- 18
For the euro 6 twinair I've read that shell helix etc 0w30 states it conforms to Fiat 9.55535-GS1, 9.55535-DS1 (meets requirements)
