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Originally Posted by coldv6super
what is the go with the oil weighting? I am now running helix 10W30 as before when I was running 20W 50. it seemed to make the car work harder than normal.
Thats why I am interested in hearing the reasons behind the weighting choice.
Thanks
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Thicker weighted oil take longer to get the car lubricated. So for a newer engine you should use what the manufacturer states.
There's a thread that talks about why the Ecotec motor should be using thinner oils due to the oil release.