Originally Posted by Mad_Hatter
Originally Posted by MetalSlug
It's sluggish at low rpm. It ran smooth once it going . I don't know . Mabe it just little i4 . Thanks guys .
There are a lot of (more likely) things that can cause poor idle or sluggish acceleration (like a failing EGR, injectors, dirty O2, clogged fuel filter, dirty TB etc.) besides oil viscosity.
Going from a 20 to a 30 shouldn't be an issue. At best the 150c viscosity is maybe +0.5, which I don't believe is thick enough to starve the engine or cause any measurable increase in heat (maybe at some of the very very tightest clearances). And the 5w is more than adequate for where you're at, it's still going to get pumped up to the top rather quickly.
You got that right. If I could feel that one of my vehicles was sluggish with a 30 grade oil vs. a 20 oil I'd sell it.
Originally Posted by MetalSlug
It's sluggish at low rpm. It ran smooth once it going . I don't know . Mabe it just little i4 . Thanks guys .
There are a lot of (more likely) things that can cause poor idle or sluggish acceleration (like a failing EGR, injectors, dirty O2, clogged fuel filter, dirty TB etc.) besides oil viscosity.
Going from a 20 to a 30 shouldn't be an issue. At best the 150c viscosity is maybe +0.5, which I don't believe is thick enough to starve the engine or cause any measurable increase in heat (maybe at some of the very very tightest clearances). And the 5w is more than adequate for where you're at, it's still going to get pumped up to the top rather quickly.
You got that right. If I could feel that one of my vehicles was sluggish with a 30 grade oil vs. a 20 oil I'd sell it.