Using up part cans of oil is it ok to mix em.

[TheGazWaz]

Good Monday afternoon all,

Just a quick Q really. Every time I do an oil change there’s always a bit left and I tend to just keep it. Anyway, I had five 4ltr parts and a 1ltr part full can.

I’ve poured the whole lot into one and got nearly 4 ltr’s so enough to do my next oil change.

My question is, is it OK to mix these oils. They are all 10/40 semi but different brands. The oldest being maybe 2 years old but all looked and smelt good.

Cheers

Gary
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Went like this.. 43 years old(2013) decided to do CBT to get a 125 for new job. Bought 2011 YBR, loved it for three months then hated it because it was too god damn slow. Did DAS 4 months later then bought RF600 Loved it, sold it bought Bandit 1200(K3). EFFIN lOVED IT. Wanted something a bit more sporty so got Triumph Sprint ST 955i (53). Not sporty enough so now on my GSXR 1000 K3 and absolutely love it. 1 year down the line, nearly died way too many times on this bike. Sold it. Had a 6 month break. Missed biking so now, Aug 2019 have a 1999 ZX9r. What a beauty she is too.

[Fizzer Thou]

I do exactly the same and have done for years.As I see it,so long as they are the same viscosity then nothing wrong.
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Just talk bikes.What else is there?

Always have a 'Plan B'

[MCN]

If the spec is the same then the name doesn't matter too much.

If any doubt then just buy the same oil al the time.

I keep the dregs for top ups between service. By the time the next service is due I have an empty to fill with old oil for dumping at the recycle arseholes place. Balanced Existence.

[owl10]

It'll be fine,

Within in reason you could mix viscosity as well e.g 10-40 and a 5-40 and not really worry, probably not recommended if you live at 15k RPM or have a brand new panigale or something, but otherwsie will keep you going.
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DanceLikeAMonkey says: "An infinte amount of web pages available
Yet I still end up reading crap like that"

[Val]

It is absolutely fine to mix oils. How do you think they do semi synth oils?

You can mix different viscosity or mineral with synth - its fine.

Obviously the resulting oil quality will be mixed
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Adrian Monk: Unless I'm wrong, which, you know, I'm not...
Yamaha Fazer FZS 600, MT09, XSR 900

[zark]

When the milk runs out, and you have to open another one to finish making the tea... I often shout, "Don't mix the cows!"

Doubt it's the same with oil though.
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CBT - Oct 13. Theory - July 14. Mod 1 & 2 - June 15.
Rides a Fazer like an idiot... Edit: Now ride a Fazer Thou...

[TheGazWaz]

Or on the other hand, when you have a burger from Macadees you're probably consuming 30 odd different animals in one bun.
____________________
Went like this.. 43 years old(2013) decided to do CBT to get a 125 for new job. Bought 2011 YBR, loved it for three months then hated it because it was too god damn slow. Did DAS 4 months later then bought RF600 Loved it, sold it bought Bandit 1200(K3). EFFIN lOVED IT. Wanted something a bit more sporty so got Triumph Sprint ST 955i (53). Not sporty enough so now on my GSXR 1000 K3 and absolutely love it. 1 year down the line, nearly died way too many times on this bike. Sold it. Had a 6 month break. Missed biking so now, Aug 2019 have a 1999 ZX9r. What a beauty she is too.

[MCN]