I looked everywhere for this thread but didn't find anything to answer my question exactly. What are you guys running in the winter for gt/gts's oil wise. The manual doesn't say anything about moving to another weight. From what research I've done I would say 0w is actually better for winter but its not a popular oil, more sceptical than anything.

 

I am also curious about this. Should we be running a thiner oil?

 

The 0w-20 will be better all year round but more so in the winter. The thinner the oil in the cold the easier it circulates in cold temperatures. For 2012 the owners manuals have been updated to say that 0w-20 is the preferred viscosity. It is a full synthetic oil though so it runs a bit more money. Amsoil makes a good product imo but Pennzoil and Mobil also offer 0w-20 weight oils.

 

Thanks for the input labrie. I used mobile one synthetic , used it one my last car and had no problems. Another thing the manual is saying is change the oil every 7500 miles? I'm a 3000 kinda guy. I thought 5000 miles was a lot. Is there any disadvantage to changing oil sooner? Besides money

 

No.

 

If you are driving the car in the winter time then follow the severe maintenance schedule, not the normal schedule. There is no disadvantage to changing the oil sooner besides money. Although if you are worried about going so many miles before an oil change, Amsoil and Mobil do make extended drain interval synthetic oils which are designed to stay in the engine longer than normal synthetic oils.

 

Labrie. I know in the States that Mobil1 and a few other companies go out of their way to say that their Full Synthetic oil will be fine in Normal Service intervals. To be completely honest, Why Canada selected a Severe schedule is kinda uncalled for. I will stop short of saying its a cash grab. But Synthetic oils is proven to stable at the extremes and last a long time under those conditions. If you are using a Synthetic blend or conventional oil, then I would recommend the severe schedule.

To answer your question earlier about disadvantages. The only thing I tend to notice with the 0w20 oil is the engine is slightly louder. Making our noise engine sound even more like a diesel

I have used 0w20 oil since the beginning on my own car and project cars. After engine tear downs the wear was exceptionally low for a 100,000km car.

 

Well my recommendation was based on the fact he didn't feel comfortable with the long drain interval. I agree with you though, regular synthetic should be fine for the normal schedule.

 

No true reason to run a lower Viscocity, we at AMSOIL have synthetics that will flow at the very cold sub zero temps. This oil I show you here below is capable of still flowing at -60 F