Branded v Supermarket fuel

Jonnycoupe said:
Yeah and in those regions OEMs have started putting magnets in the fuel tanks to try managing the metal particle debris in the fuel.

I think China V is 89-95 RON as part of their de-sulphur of fuel regulations in 2013
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That matches what I found

http://en.people.cn/90882/7673481.html

I couldn't find a free copy of the GB 17930-2013 regulation


Nasher said:
Until very recently China were selling petrol with as low as 89 RON (I think India still do). They are mostly the same cars we buy elsewhere with the same engines...
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The engine might be the same, the ancillaries and the calibration almost certainly won't be
 
Nasher said:
Until very recently China were selling petrol with as low as 89 RON (I think India still do). They are mostly the same cars we buy elsewhere with the same engines...
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Any modern car will need 95Ron and fuel stations will have a selection of fuels. Only the really old stuff will use below 95ron.

Same situation in any fuel station in Russia. It’s available but no engine is going to run correctly if used. Hence every fuel cap and hand book states 95ron minimum.

Your proof point would be like saying a supermarket sells engine oil but also olive oil. Therefore any car can use olive oil.
 
Recent USDM EA888 2.0TSIs don't have port injection like the rest of the world does, not sure why, perhaps because their emissions targets are less strict
 
Would be interesting to compare one run on 5W30 rather than the 0W20 - seems to be a reasonably popular opinion over here that 0W20 was only swapped to in order to meet stricter emissions targets with WLTP and many people swap back to 5W30 at the first oil change, I wonder if the usage of such a thin oil leads to far more of it finding it's way back to the inlet via the PCV system.
 
Kenai said:
Recent USDM EA888 2.0TSIs don't have port injection like the rest of the world does, not sure why, perhaps because their emissions targets are less strict
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As you've said, entirely emissions related. I can't remember the specifics, but it's a result of differing standards for particulate emissions.

Once we switched over to EU6D and the EA888 required a particulate filter to pass they dropped the port injection.

I can grab some more info from a colleague on the specifics as he was an emissions calibrator for an OEM until recently
 
Frozennova said:
As you've said, entirely emissions related. I can't remember the specifics, but it's a result of differing standards for particulate emissions.

Once we switched over to EU6D and the EA888 required a particulate filter to pass they dropped the port injection.

I can grab some more info from a colleague on the specifics as he was an emissions calibrator for an OEM until recently
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I thought even the GPF fitted EUDM cars still had multipoint injection but maybe not?
 
Kenai said:
Would be interesting to compare one run on 5W30 rather than the 0W20 - seems to be a reasonably popular opinion over here that 0W20 was only swapped to in order to meet stricter emissions targets with WLTP and many people swap back to 5W30 at the first oil change, I wonder if the usage of such a thin oil leads to far more of it finding it's way back to the inlet via the PCV system.
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Toyota are using as light as 0W-16 in some of their engines, which is odd because Lotus are using as heavy as 5W-40 for the same engines!

It does seem to be exhaust emissions at the cost of the engine.
 
Kenai said:
I thought even the GPF fitted EUDM cars still had multipoint injection but maybe not?
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Not that I'm aware of, MPI became an unnecessary cost for no benefit once the GPF was in place. The GPF is also why most models have seen a derating in power output.

I know for certain the GTI has no MPI when a GPF is fitted
 
Frozennova said:
Not that I'm aware of, MPI became an unnecessary cost for no benefit once the GPF was in place. The GPF is also why most models have seen a derating in power output.

I know for certain the GTI has no MPI when a GPF is fitted
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Might pull the engine cover off my 245 at some point and have a look. A lot of debate in the Skoda groups about whether the 2017 245 cars had a GPF - some places say all 245 engines are GPF fitted, others say only from 2018 onwards.

I had assumed either way they'd retained MPI but as you say, it doesn't make much sense to retain it if a GPF is fitted.
 
Kenai said:
Might pull the engine cover off my 245 at some point and have a look. A lot of debate in the Skoda groups about whether the 2017 245 cars had a GPF - some places say all 245 engines are GPF fitted, others say only from 2018 onwards.

I had assumed either way they'd retained MPI but as you say, it doesn't make much sense to retain it if a GPF is fitted.
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GPF is under the car rather than in the engine bay

Iirc the introduction of GPF was 1st Sept 2018.

Non-GPF engine codes were DLBA for 245ps models and DLBB for 227PS models. They changed to DKTA for 245ps models and DKTB for 227ps models once a GPF was fitted
 
I need to have a nosey at my N18 mini for carbon.

it might be because the GPF captures the PM ( prevalent with DI) to meet the new emission requirements in EU6 that they can then remove the port injection that were there to reduced the PM creation for the less stringent emissions.
 
Jonnycoupe said:
I need to have a nosey at my N18 mini for carbon.

it might be because the GPF captures the PM ( prevalent with DI) to meet the new emission requirements in EU6 that they can then remove the port injection that were there to reduced the PM creation for the less stringent emissions.
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That's exactly as I understand it to be
 
Jonnycoupe said:
I need to have a nosey at my N18 mini for carbon.

it might be because the GPF captures the PM ( prevalent with DI) to meet the new emission requirements in EU6 that they can then remove the port injection that were there to reduced the PM creation for the less stringent emissions.
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You got a scope? I'm sure the intake ports are located towards the engine compartment bulkhead and are a complete pig to see in. Even harder to clean.
 
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