Technical TwinAir and 0W-20 oil

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Technical TwinAir and 0W-20 oil

dwardrian

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Hi there, long time lurker first time poster. Obligatory TwinAir oil question/rant/confusion 🤯.

I thought I'd create a new thread, since this is going to be about 0W-20, as opposed to the usual 5W-40 vs 0W-30 topic - I hope that's ok.

I have a 2022 Panda Cross TwinAir which requires 0W-30 oil. I have a friend with a 2013 Panda 4x4 TwinAir requiring 5W-40.

I've read all about dealerships not knowing to use 0W-30 on the euro 6 engines and going with 5W-40 etc etc, but our local fiat dealership (Richard Hardie Silverlink Fiat/Abarth) is absolutely adamant that the correct oil to use nowadays in both of these cars is 0W-20, and they refuse to put anything else in. They say they've been told by Fiat to use 0W-20 oil in all of their engines going forward (yes - all models, all ages).

After a lot of back and forth they said they do stock 0W-30 because they have "all sorts of oils for the Abarths". The person on the help desk wrote "0W-30" on my worksheet and said she'd tell the mechanic (it's so frustrating not being able to talk to the mechanic at these places...)

When I picked up the car, it had 0W-20 on the invoice. I got nowhere trying to have it rectified. That was six months ago.

My friend with the 2013 4x4 was due in for a service last week - I let her know the situation with mine and she got them to write 5W-40 on the worksheet, and stated that it was really important. They also told her at the desk that 0W-20 is what they would usually use but they wrote 5W-40 on the worksheet for the mechanic. She picked up her car and invoice a few days later and 0W-20 is the listed oil. She chased this up way more than I did - been on the phone to them all week and sending emails back and forth. They are refusing to do rectify because they "wouldn't put 5W-40 oil in, your manual is over ten years old... Fiat have done a callout and we have to use 0W-20 oil in all of their engines, this is the most up to date oil, so we simply wouldn't be able to use 5W-40. We couldn't do it." I pointed out that my manual is for a 2022 car and still lists 5W-40 for euro 5 versions and 0W-30 for euro 6.

So my question is, does anybody know whether 0W-20 oil is indeed fine? For the older 4x4 my friend will probably just take it to an indie next year for its oil change (there's a longer story about why she's taking to a dealership for an older car...) Whereas for my 2022, it's actually still under warranty until around July 2025 - so I need to be taking it to Fiat dealerships for its services. I'd also much prefer to be taking it into a Fiat garage for the foreseeable what with it being a newish car with under 5000 miles and keep those Fiat stamps going. It's all very stressful, knowing I could be doing damage to the engine but getting absolutely nowhere with the dealership and using the correct oil specification. I'm also sure the car has lost some of it's umph since the service, but that could be psychological.
 
Everything I've read suggests that for the uniair unit to work correctly, the temperature/viscosity curve for the oil must match whatever the engine management software is expecting to see.

I don't think anyone has been able to ascertain whether there have in fact been any changes to the programming to match the changes in recommended oil specification.

In the absence of any better informed advice, the usual collective recommendation of the forum is to use what it says in the handbook that came with the car, and nothing else.

I would not expect a TA engine to perform optimally unless its oil viscosity matched what the car was programmed for. As to whether using an oil with different viscosity but otherwise similar quality and specification would actually damage the engine, who knows? We do know that uniair failures are regularly reported on the forum, and I doubt you'd have much change out of £2000 if it needed replacement unless you are capable of doing the work yourself, so it's definitely something to think about.

I can understand your reasons for having it serviced by a franchised dealer, but I've not much confidence that they would even know what the right oil for any given car was, much less actually use it.

Most of the major failures we've seen have all been on cars >5yrs old with >40000 miles, so unless you're planning on keeping it beyond that, I wouldn't overly stress about it. And as you say, those main dealer stamps in the service book should get you a little more for it at trade in time.
 
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Well here are the oil specs from a 2021 owners handbook. It still says 0W-30 for the Twinair, but 0W-20 for the 1.2 8V 69HP ! Really I would just stick with what it says in the book that came with your car.
 

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I would be OK with that if I was given a copy of the Fiat technical bulletin and the reasosn for this recommendation. Otherwise I would say something rather rude to them.
I think the only reason is more fuel economy = less emissions. Even though it probably means more engine wear, which they don't care about.
 
I think the only reason is more fuel economy = less emissions. Even though it probably means more engine wear, which they don't care about.
You may be right, but its long obsolete, and I cant see them suggesting any changes to a product they dont make any more. This is far more likely ignorant dealer speak. It has never been suggested by my dealer who appear to know what they are doing.
 
I’ve a 23 reg TA 9.0 4X4 which does hardly any mileage. I do the oil service myself first one was done back in May @ 5000 miles I’ll do the next one probably around March next year and I’ll get a Fiat service done summertime 2026. I’m not particularly bothered about the stamps or Fiat servicing the car until then.

The oil service is really simple parts including oil are about £60 takes about an hour for the oil change and I spent about £150 on tools but it’s not about the money or saving thereof it’s about making sure the correct oil is in the car along with the air and oil filters. I’ve already got the bits for the next oil change.

Regarding trade in or selling the car I have the receipts for the parts used but we’ve absolutely no intention of selling the car in fact we’ve just cleared the credit on it which save us about £2000.
 
I will be keeping mine as long as I can manage too. Thereis nothing else on sale I want at any price. If I have to have an EV it may as well do the driving too and it can be a chinese food mixer for all I care about EV's. It will be punative taxes that force my next change or lack of parts which I fear is a live possibility as we are in teh hands of a company I dont trust or like..
 
The only TSB (technical service bulletin) I can find relating to oil grade change is only for the 1.5L engine

If there's a TSB for a change of oil specification they should be able to give you the reference number and or copy of the TSB

As far as I know its, hope I haven't made a typo

5W/40 turbo twin air euro 5
0W/30 turbo twinair euro 5b/6
0W/20 normally aspirated twinair
10W/50 arbarth with power upgrade kit
5W/40 1.2 pre 2019
0W/20 1.2 post 2019
0W/20 1L mild hybrid

Note the warning at the bottom of the about oil in the twinair


Screenshot_20241207-185914.png
 
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I think the only reason is more fuel economy = less emissions. Even though it probably means more engine wear, which they don't care about.

Owner manual are online at Fiats own website hasn't changed

It may be an oversight

But I suspect the dealership is wrong

I have access to some of the range service bulletin but not for the post 2012 Panda unfortunately

Independent fiat store, and service centers are still specifying the same oil grades as the owners manual, none of them have changed
 
I will be keeping mine as long as I can manage too. Thereis nothing else on sale I want at any price. If I have to have an EV it may as well do the driving too and it can be a chinese food mixer for all I care about EV's. It will be punative taxes that force my next change or lack of parts which I fear is a live possibility as we are in teh hands of a company I dont trust or like..
My wife drives the car she absolutely loves it which really surprised me but they really are great cars.

I received a tax free pension payment of £12k back in August so I paid the car off so hopefully it will see us alright for a right few years now,
 
My wife drives the car she absolutely loves it which really surprised me but they really are great cars.

I received a tax free pension payment of £12k back in August so I paid the car off so hopefully it will see us alright for a right few years now,
My Mrs doesnt like the TA and prefers the 1.2's. This is good as it means Im virtually the only driver. I haveto say our 2014 1.2 in teh 185 tyres is a very nice drive. Im not sure why, but it feels smooth and quiet and well planted in arelaxing way. Noop is soemwhat more energetic although the TA is happy to potter at low evs or go like hell with equal ease which is why I love it. Its at least as good and quicker than the 2.0 Mitsubishi Galant from the 80s which is still suprising even with the time lapse.
 
Or get it from the horses mouth and put your reg in here
Hmmm, this doesn't give the right oil for my 2010 Panda Dynamic Eco.

That website tells me to use a 10W40 semi; the original owners handbook supplied with the car calls for a 5W40 fully synth.

Now the 60HP 1.2 will almost certainly outlast the rest of the car on either oil, but it does show how difficult it can be to be sure you've got the right information.
 
Or get it from the horses mouth and put your reg in here

That horse won't give any recommendation. It says refer to the handbook.

"Disclaimer"

"Any information or recommendation by PETRONAS relies on you having selected/provided the appropriate information to PETRONAS. Please refer to your vehicle/equipment handbook to confirm the suitability of any product recommendations before use. PETRONAS shall not be held responsible for any loss or damage of whatever nature from any use of the product(s) in reliance on the product information and/or recommendation(s). For more detailed information please consult your vehicle/equipment handbook"
 
Hmmm, this doesn't give the right oil for my 2010 Panda Dynamic Eco.

That website tells me to use a 10W40 semi; the original owners handbook supplied with the car calls for a 5W40 fully synth.

Now the 60HP 1.2 will almost certainly outlast the rest of the car on either oil, but it does show how difficult it can be to be sure you've got the right information.

Good spot

Just put the reg of my old 2011

Screenshot_20241207-202600.png


Just put a reg of a random 2007

Screenshot_20241207-203022.png


Which confused me for a bit, as it semisynthetic

I suspect it's right

FCA 955535 B2 is the minimum specification for petrol cars, which it meets

I suspect the manual just specifies S2 synthetic as it simplifies stocking instead of having to stock B2, D2, G2 and S2, just stock the diesel version

Similar to the gear oil depending on manual it's

GL4+ or GL5 I think there's a GL4 as well it's gone up and down like a yo-yo, yet it's the same gearbox
 
That horse won't give any recommendation. It says refer to the handbook.

"Disclaimer"

"Any information or recommendation by PETRONAS relies on you having selected/provided the appropriate information to PETRONAS. Please refer to your vehicle/equipment handbook to confirm the suitability of any product recommendations before use. PETRONAS shall not be held responsible for any loss or damage of whatever nature from any use of the product(s) in reliance on the product information and/or recommendation(s). For more detailed information please consult your vehicle/equipment handbook"
I take it's a 1L mild hybrid at this age

Screenshot_20241207-212638.png


Screenshot_20241207-213523.png
 
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