Oil viscosity change volume?

[kerryb]

1970 type 1 motor with dual port heads. Up to now I have run 10w40 oil. I would like to change to 20w50 oil.

If the engine holds 3.2 quarts, but we only put in 2.6 at an oil change, how does this affect my new oil? It would be diluted, am I being a worry-wart?

Thanks for your understanding...

[rhino 2]

1970 type 1 motor with dual port heads. Up to now I have run 10w40 oil. I would like to change to 20w50 oil.

If the engine holds 3.2 quarts, but we only put in 2.6 at an oil change, how does this affect my new oil? It would be diluted, am I being a worry-wart?

Thanks for your understanding...

Back when I had Beetles (1971/1973) And a 65 dune buggy i used straight 30 Weight I never worried about diluting…. I put at least 150,000 miles on each one of the Beetles..I Commuted every day to work with the Beatles..

[Jack Klarich]

If you are doing a total oil change the volume does not change, you might be better off running a sraight weight oil like 50W as Bob suggested

[kerryb]

If you are doing a total oil change the volume does not change, you might be better off running a sraight weight oil like 50W as Bob suggested

Ok, lets say I'm going straight 50w, how much do I put in. My dipstick is wrong, I know that, so I marked it last time I did an oil change. But how do I get the rest out so I can put in the recommended 3.2 quarts so Everything is now 50w? The manual says 2.6 quarts at an oil change.

[Jack Klarich]

Ok, lets say I'm going straight 50w, how much do I put in. My dipstick is wrong, I know that, so I marked it last time I did an oil change. But how do I get the rest out so I can put in the recommended 3.2 quarts so Everything is now 50w? The manual says 2.6 quarts at an oil change.

If it were mine, I would just drain it and start over fresh with the 3.2 quarts your engine calls for. That way you know it is right and your stick should read that amount if you have it marked.

I do not like guess work nor mix n matching oil. I would rather redo the whole oil change and be confident in my work

I try to live by the KISS protocol when ever I can

[Sidecarbill]

Be careful running heavier oil than recommended by vw can make your engine run hot.

[rhino 2]

Ok, lets say I'm going straight 50w, how much do I put in. My dipstick is wrong, I know that, so I marked it last time I did an oil change. But how do I get the rest out so I can put in the recommended 3.2 quarts so Everything is now 50w? The manual says 2.6 quarts at an oil change.

With my Beetles if i remember correctly.......2 and a half.....And a half in the air cleaner ...[Which you probably don't have on yours...]

Don't over think it.....The little oil mixed together wound't hurt a thing...And when you do the next oil change most of the mix will be drained out.....