- Joined
- Dec 28, 2014
- Messages
- 2,857
Can someone explain to me how a 20wt oil would flow compared to a 40wt oil in an engine sepc’d for 20wt? I guess the question I’m asking is...would it damage the engine to use a 40wt oil in a severe oil burner that is spec’d for a 20wt (in a warm climate with no worry of cold starts).
I’d love it to be as technical as possible. With evidence leaning towards that it is no issue to use the 40wt. I believe it’s been discussed. I’ll search, but any fresh insight would be appreciated, because someone just told me the “engine would blow up if a 40wt was put into a particular V8 that is spec’d for a 20, because it wouldn’t flow fast enough”.
I’d love it to be as technical as possible. With evidence leaning towards that it is no issue to use the 40wt. I believe it’s been discussed. I’ll search, but any fresh insight would be appreciated, because someone just told me the “engine would blow up if a 40wt was put into a particular V8 that is spec’d for a 20, because it wouldn’t flow fast enough”.