Mixing oil brands.

[Beehive Bedlam]

Is it ok to mix oil brands I have half a bottle of one and some left of a 4L halfords motorcycle oil both are 10/40.

How often should I change? So far I've been doing it between every 1000 - 1500 miles and the filter of course. I am commuting on the bike six days a week eighty miles a day. Quite a bit of this is dual carriage way so I am ringing its neck to 70MPH.

The bikes a varadero 125 03.

[P.addy]

I use whatever 10w40 I have, I tend to keep it the same "type" so mineral, semi etc. I won't mix the two.

[Mark65]

My CG does 30 miles a day 5 days a week, my oil is about £2.50 a liter, I change once a month every 600 miles, may let it go to 750 now and then.
At £2.50 a change its dirt cheap, I use the Viscol 10w40 from Quality Save stores, £9.99 for 4.5 liters, made by Rock Oil and its seems very good my engine is nice and quite with it.
Consensus on 125 engines is every thousand miles and there should be no problem on mixing oils as far as I know.
Mark
____________________
07 Yamaha YBR125, 07 Honda CG125 , 15 CBR300R (Chocolate Crank, Deaded), 16 CB500FA, 19 Honda Forza 300, 70 Suzuki SV650

[Islander]

Mixing oils is fine just don't mix mineral (standard oils) with vegetable (Castrol R).

[Walloper]

Brands of the same or equivalent grade of oil will mix.
There is some issue with synthetic, semi synthetic and non synthetic worth investigation though.

What is with the trend of changing engine oil so early.

Honda recommend change every 1800 miles or three months.

Why waste money and time. Modern oil ain't gonna go out of grade even at 2000 miles. Don't sweat this shit.

edit:

The grade of the oil is it's ability to pour at certain temperatures. Mixing a low temp oil with a high temp oil will adjust this.
It can affect the protection factors of the oil too.
____________________
W-ireless A-rtificial L-ifeform L-imited to O-bservation P-eacekeeping and E-fficient R-epair

[Beehive Bedlam]

[P.addy]

You want over a litre easy...

[Walloper]

[Walloper]

[P.addy]

I change the oil in my Vara every 1000 miles. Always with the cheap stuff... to me, it is the sole reason it has got to the mileage it has.

I wouldn't leave oil in any of my bikes for more than 2500 miles, ever.

[Walloper]

[P.addy]

I use the Vara on the motorway, sitting at the red line, 60 miles a day. The engine needs love.

The way I see it, I'd rather spend the £6 of 4 litres (so 3 months worth of oil changes) than risk munching my engine. It has car mileage at the minute and it will keep working if the oil gets changed.

I couldn't care how you want to treat your more expensive bikes, but for a reliable little commuter that does the job daily, I'll treat it with some form of care.

[Beehive Bedlam]

[1198]

I foresee a stripped sump plug thread...

[P.addy]

[Islander]

[P.addy]

Covering all bases init

[1198]

If you are doing 80 miles a day, 6 days a week and swapping the oil every thousand miles then you're doing an oil change every two to three weeks, more or less?
As most accept it's the few moments after the cold start that does the damage to the engine, and you're doing presumably 40 mls per trip, say that you'd be better off following the service routine suggested by the bike'S experts / makers / engineers / designer, save a few quid on the fortnightly oil change and put it to a bike more suitable, that doesn't need to bounce on the rev limiter for upwards of a hour a day...

[P.addy]

What bike can do what the Varadero does daily?

[1198]

[1198]

[P.addy]

No, and I have moaned at Honda, even asked if there was anything in the pipeline, they called me up

Suggested I looked at the NC700X, tbh it is the right idea, but I was aiming for the <500cc tax bracket. 400 V twin or 350 V twin... ideal.

[1198]

[Walloper]

[Rogerborg]