Putting gas in lawnmower

Goes to show that no matter how good the maintenance, stuff happens.

This is a good place to hang out to learn about cars. If you’d like, I can recommend some good text books. Any bookstore can order them.

Auto Fundamentals
By Stockel, Stockel and Johanson
Published by Goodheart - Wilcox
ISBN 1-56637-138-4

Automotive Engines
By Crouse and Anglin
Published by MacMillan/McGraw Hill, (800) 338-3987
ISBN 0-02-801099-X

Complete Engine Performance and Diagnostics
By Robert Scharff & Editors of Motor Service
Published by Delmar Publishing / Thompson learning, (800) 477-3682
ISBN 0-8273-3579-2

Automotive Chassis Systems
By Thomas W. Birch
Published by Delmar Publishing / Thompson Learning, (800) 477-3682
ISBN 0-7668-0001-6

Fuel Systems and Emission Controls
Published by Chek-Chart Publication, (408) 739-2435
ISBN 9-781579-322496

Toro recommends washing the mower after every use. I read the manual! ;’)

Filling it before use is a good idea. Any gasoline spilled will evaporate before the mower gets really hot. Coolest is best and always fill up outside. That way, the mower can burn up completely and the fire dapartment can save the house before major damage is done. I know you do it that way.

Thank you. I do fill it outside but appreciate the reminder as a good safety measure!

Thank you Mountainbike.

Gas evaporates pretty quickly out of my mower’s tank, so I try to leave as little in there as possible.

That was true with older cars, but modern cars have a “Closed” fuel system. When running, the empty space in the tank is reduced to vacuum by the emissions system. The only time air gets in is when you open the cap. If air is allowed in when sitting, then evap system has a leak, and the CEL light will sense that, and set a code.

The only comment I have is that if your lawnmower has a steel tank, I would keep ot full when stored, I have a few vintage motorcycles and rust in the tank can be a problem if they are left sit with a half filled tank

I always thought it best not to fill the gasoline tank on a lawnmower at all. I would then save a lot of energy in not mowing the lawn and the lawnmower would last indefinitely. However, my wife didn’t like this idea. I fill the lawnmower just before I start mowing, and it seems to work for me.

Is it just regular gasoline that goes into a lawnmower? I bought my used with no manual, but I put some gas with a bit of injector cleaner and it ran rough, much more then when i first got it.

Can someone tell me what I’m doing wrong?

Not without watching. Try visiting the manufacturer’s website or the engine manufacturer’s websiet. They may have a downloadable operating manual.

The only thing I can think of is how air-tight your lawnmowers tank is. If you fill up and let the gas sit in there for a week, and the cap isnt on tight, you might be losing a lot of gas to evaporation. Besides that, only other thing is that spilled gas might peel the paint. Do whatever is best for you. GOOD QUESTION!

I used to work for a company that made lwanmowers. The guys that write this stuff often don’t even own a lawnmower. So take this stuff of hosing down the mower with a grain of salt. Since in the US we like like to sue for every imaginable discomfort or peril, Toro may just be covering their buns from respiratory allery sufferers, and possible fire hazards caused by dried on grass.

Scraping off the bottom of the deck after running the tank dry is good for the efficient functioning of the discharge chute. It also keeps the mice at bay; they love to chew on this stuff!

I only clean my 22 year old mower thorouhgly before putting it away for the winter.