Gavs, I agree about the low viscosity of the oil to reduce internal loss of energy, but if the oil is burned it means that something (rings or scrapers) don't work properly...
5W30 is low viscosity and it's more and more used to reduce fuel consumption, but it's only referred to cuncossions and pumping, not friction on the cylinders walls. Any modern oil guarantees no direct contact from iron to iron...
Furthermore the very different behaviour on the same engine from one to another it means that there is something wrong: I mean that some GTIs don't burn oil and others a lot...
If it was a project choice all of the 1.4TSI should burn oil almost in the same way...
5W30 is low viscosity and it's more and more used to reduce fuel consumption, but it's only referred to cuncossions and pumping, not friction on the cylinders walls. Any modern oil guarantees no direct contact from iron to iron...
Furthermore the very different behaviour on the same engine from one to another it means that there is something wrong: I mean that some GTIs don't burn oil and others a lot...
If it was a project choice all of the 1.4TSI should burn oil almost in the same way...
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