Oil Specs ?

[J4CKO]

Decided to change the oil on my wifes 2014 Fiesta with the 1.0 engine, was fairly sure I had the correct oil in my collection, there is 20 lites of various 5W30's in there but all say they are a VW/Audi/Merc/porsche spec, will probably buy some but as long as its the correct viscosity, will probably do only 4k and will get changed this time next year, will it make any difference ?

And on a nearly 10 year old Fiesta does it actually matter ? What are the technical differences ?

[CraigyMc]

J4CKO said:

Decided to change the oil on my wifes 2014 Fiesta with the 1.0 engine, was fairly sure I had the correct oil in my collection, there is 20 lites of various 5W30's in there but all say they are a VW/Audi/Merc/porsche spec, will probably buy some but as long as its the correct viscosity, will probably do only 4k and will get changed this time next year, will it make any difference ?

And on a nearly 10 year old Fiesta does it actually matter ? What are the technical differences ?

At 4K before the next change, it'll make no odds.

[Steve93]

J4CKO said:

Decided to change the oil on my wifes 2014 Fiesta with the 1.0 engine, was fairly sure I had the correct oil in my collection, there is 20 lites of various 5W30's in there but all say they are a VW/Audi/Merc/porsche spec, will probably buy some but as long as its the correct viscosity, will probably do only 4k and will get changed this time next year, will it make any difference ?

And on a nearly 10 year old Fiesta does it actually matter ? What are the technical differences ?

The 1.0 ecoboost or N/A takes a 5w20 oil if I remember correctly

They are as fragile I'd not recommend trying any other oils in it. Changed one with a massive window in the block with conrod poking out and one with a stripped timing belt...worth noting they have a wet timing belt so changing the viscosity and different additives may speed up the failure point for that.

[James_N]

J4CKO said:

Decided to change the oil on my wifes 2014 Fiesta with the 1.0 engine, was fairly sure I had the correct oil in my collection, there is 20 lites of various 5W30's in there but all say they are a VW/Audi/Merc/porsche spec, will probably buy some but as long as its the correct viscosity, will probably do only 4k and will get changed this time next year, will it make any difference ?

And on a nearly 10 year old Fiesta does it actually matter ? What are the technical differences ?

Aren't these the Ecoboost with the wet belt? in which case, the oil shouldn't be scrimped on.

according to google, should run on - Engine Oil - SAE 5W-20 - Full Synthetic

[DannyScene]

It should really take 5W20 ecoboost oil

With my motor factor hat on I wouldn't recommend any other oil personally

[J4CKO]

It is 5w20, have ordered some, annoying when there is gallons of the stuff in the garage !

Suspect it wouldnt make a blind bit of difference but may as well put the correct stuff in for £40, more about freeing up shelf space.

[Krikkit]

J4CKO said:

It is 5w20, have ordered some, annoying when there is gallons of the stuff in the garage !

Suspect it wouldnt make a blind bit of difference but may as well put the correct stuff in for £40, more about freeing up shelf space.

If it wasn't a wet timing belt it'd be worth chucking some decent 0w30 in imho, but it is, and it's definitely not worth it!

[GeniusOfLove]

I do wonder how much the oil meeting the manufacturer spec matters vs just caring about viscosity matters, plenty online to suggest "lots" but usually based on no or very little technical knowledge. On something with a reputation like the ecoboost I'd not want to experiement and find out though

[stevemcs]

Yep needs the 5w20 to try and save the wet belt

[dirky dirk]

surpirsed at you evan asking that you know its 5w20 and i wouldnt take a chance
i do my lads twice a year

[georgeyboy12345]

If it’s nearly 10 years old, why don’t you take it to Ford for a new belt and get them to do the oil at the same time? It’ll cost you a grand, mind.