How do I avoid wasting oil when I top up SOSA Safar?

Nobody writes this page, because it is unglamorous and because the interesting version would be about consumption. The interesting version needs a rate SOSA has never published. The unglamorous version is about a sheet of kitchen paper, and it is the one that keeps oil off your car.

The answer, in full

Let us be precise about the waste, because the word covers two different things. SOSA publishes no oil-consumption rate for Safar, so how much the diffuser gets through is not something this page can discuss, with or without a figure. What it can discuss is the oil that never makes it into the bottle, and that is most of the oil anybody actually loses. So take the bottle out of the unit and fill it at home, on a flat surface, with a sheet of kitchen paper under it. Pour slowly, down the inside of the neck rather than into the middle, and stop while you can still see clear glass at the neck. Wipe the thread of the bottle and the lip of the refill before either cap goes back on, because oil left on a thread is oil that ends up on your fingers and then on the steering wheel. Then cap the refill firmly and stand it upright. None of that is published guidance. It is how I do it, and the only thing it does is keep the oil and the upholstery apart. A portion of every SOSA order supports girl-child education through Nanhi Kali.

Where the oil actually goes when you lose it

Three places, and all three are about handling rather than about consumption. SOSA publishes no rate at which the diffuser uses oil, so the rate is not what this page is about.

The thread and the outside: the oil you can see afterwards

Most of what is lost never gets further than the glass. Oil runs down the outside of the refill bottle, sits in the thread, and transfers to your fingers and then to everything you touch. Pouring slowly against the inside of the neck, and wiping both threads with kitchen paper before the caps go back on, deals with nearly all of it. A funnel helps if you have one. A steady surface helps more.

Wipe both threads before either cap goes back on.

The car: the worst place to do this

Filling the bottle in the driver's seat is how oil reaches upholstery, and upholstery is the one surface in this that you cannot wipe clean and forget about. Take the bottle indoors. SOSA publishes no instruction about where to fill it, so this is my own habit rather than a rule, and it is the habit that has spared me the most trouble.

The overfill: the one that looks like success

A bottle filled to the very brim is a bottle that pushes oil back out past the thread when the cap goes on and when the car moves. SOSA publishes no fill line and no maximum level, so I cannot quote you one. What I do is stop while there is still clear glass at the neck, which also leaves the level easy to read against the mark.

Stop while you can still see clear glass.

Does it matter which scent you are pouring?

Not for the handling. The nebuliser refill is pure undiluted oil in 100 gm and 300 gm, SOSA publishes a pyramid for each of the nine scents and no ranking across them, and nothing published says one pours differently from another. If you are changing scent rather than adding more of the same, note that on your card with the date, because a changed scent restarts any measurement you were running.

Pouring from a bottle you have just opened is the easiest pour there is. The nebuliser refill oil is ₹1,049 for 100 gm and ₹1,849 for 300 gm. See the nebuliser refill →

What this page is about, and what it is not

If you want the number this page refuses to give you, the way to get it is the one in the refill series: mark the level, write the date, drive your ordinary month and mark it again. That gives you a figure about your own car, which is the only kind of figure there is.

“The oil you lose is mostly the oil that misses the bottle. That is a handling problem, and handling problems have answers even when the record says nothing.”

Filling the bottle without losing any, in four steps

1. Take the bottle out of the unit and fill it indoors, not in the car.
2. Stand it on a flat surface with kitchen paper underneath.
3. Pour slowly down the inside of the neck and stop before the neck.
4. Wipe both threads, then cap the refill firmly and stand it upright.

Questions, answered