How to remove Diesel Fuel from Granite
First 60 seconds
The first sixty seconds decide how this turns out. Blot — do not wipe the diesel fuel from the granite, working from the outside edge of the stain inward so it cannot spread any further. A heavier, oilier fuel than gasoline that spreads readily if wiped instead of blotted, and dense and heat-resistant, but a sealed surface can still stain if liquid sits too long.
What you'll need
- Cornstarch or talcum powder
- Dish soap
- WD-40 or a similar lubricant
Step by step
- Gather your materials before you start — set out everything so you are not searching mid-treatment.
- Cornstarch or talcum powder: bury the spot in powder to pull the oil out.
- Dish soap: mix a few drops with cold water into a light suds.
- WD-40 or a similar lubricant: spray lightly, wait a minute, then wipe from the outside in.
- Rinse and blot dry with a clean cloth, then press with dry towels and change them until no more transfers onto the towel.
Do not do this
- Hot water as a first step. It spreads oil-based stains before they can be lifted.
- Wiping side to side. It spreads the stain into a wider area — blot straight down instead.
Common questions
Can I use hot water to remove diesel fuel from granite?
Hot water is not usually necessary, but on granite it is safer to stay with cool water regardless, since dense and heat-resistant, but a sealed surface can still stain if liquid sits too long.
Is it safe to scrub the stain out?
Scrubbing usually makes things worse. Blot or lift instead of rubbing, working from the outer edge inward so the stain does not spread.
What if the diesel fuel stain has already dried?
A dried stain takes longer and may need repeated treatments, but the same agents still work — just re-wet the area gently first to reactivate the stain before treating it.