A New Oil Specification for GDI Engines

[moinmoin]

This year brought us a new specification for motor oil; ILSAC GF-6 / API SP. One of the primary goals of the new oil spec is to reduce incidence of two problems gasoline direct injection (GDI) engines have been experiencing.

GDI blasts the fuel directly into the combustion chamber at high pressure. This leaves less time for the air and fuel to mix together. The resulting air/fuel mixture may burn unevenly which may generate a lot of soot. As the pistons move up and down, the soot gets mixed into the motor oil. The soot travels with the motor oil through the engine and causes wear.

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[Jayphil]

Interesting, it is also suggested in the article to use the Severe condition oil change interval which us Canadian are already pretty much forced to use because of Winter.

I wonder of KIA will update the oil requirement to this new spec at some point!

 

[ThinBlueLine]

Crappy gas in California doesn’t help either in GDI motors. I like a 3k oil change personally. Thx for the good info, should be interesting to see what Kia does.

 

[robz32]

Excellent info.

This is why I've adopted the Severe condition interval.
"GDI blasts the fuel directly into the combustion chamber at high pressure. This leaves less time for the air and fuel to mix together. The resulting air/fuel mixture may burn unevenly which may generate a lot of soot. As the pistons move up and down, the soot gets mixed into the motor oil. The soot travels with the motor oil through the engine and causes wear."

 

[SoCalSHO]

Crappy gas in California doesn’t help either in GDI motors. I like a 3k oil change personally. Thx for the good info, should be interesting to see what Kia does.

Besides low octane, and high taxes, what else is wrong with it?

 

[Cosmo]

Hmmmmm.....no mention of the Sulphur content which is what the Euro-L spec oils reduce.