VS slouchy when cold

[someguy360]

Hi Guys

Since winter has hit I have noticed my ecotec has been rather sluggish in the mornings

on a cold start it will idle fine but just doesn't seem to have much umph when I start driving (throttle almost feels heavier)...after 1-2km it comes right and goes hard.

My brothers 350,000km L67 Calais doesn't seem to have this problem

I am running Caltex GTX 20w50 oil if that makes any difference

Is this normal behavior for an ecotec...it was fine through out summer its just these past couple of weeks

[hako]

Possibly your auto transmission needs a service - once the oil warms up the clutches grip better etc. How long since it has been serviced?....should be done about every 3 years or 80K.

[Brett_jjj]

I agree with hako about the auto trans services,except Id halve that recommended service interval under normal driving conditions.You can also try a different thinner engine oil ,something like penrite HPR 15 ,which is a semi synthetic 15W -60 oil.Its a bit thinner when cold than the normal 20W-50 oil your using so it flows a bit easier when cold.Its fairly cheap too.Ive used this oil for a few years now with no problems,it also stays slightly thicker at high temps for better protection in the heat during the summertime...