Oil Changes

[flat_black]

In order to prevent this, use some 5W or 0W oil rather than 10W. The cold weather will cause the oil to thicken, but oil of 0W30 and 5W30 will flow better at cold than 10W30. Check the oil level, and make sure it's not too high, too. Or too low.

Also, use an oil filter with a proper check valve. If you don't, the oil has to be pumped to fill all the galleys properly, and lubricate all the moving bits, rather than being at least part way up there.

In short, a quality filter and lower cold weather rating will help your car substantially on cold starts.

 

[red95_240sx]

yeah. i can even hear the engine roaring like a skateboard for 5 seconds on start at the morning.

Whats a check valve.

 

[MonkeyBone]

5W30 in winter

10W30 in summer

 

[flat_black]

A check valve is a valve in the oil filter that keeps the filter filled with oil when the engine is off, and the oil pump is not functioning. This allows the oil to circulate a little faster during a cold start.

Personally, living in CA, I actually run Amsoil 0w30 all year 'round, lately. It makes for nice, consistent performance. The cold pouring viscosity is a bit lower than 5w30, but it offers the same level of protection.

 

[red95_240sx]

oh i gotcha.