Hummer's official E10 statement
As published on the UK government E10 checker, reproduced word for word. Checked 25 October 2026.
The following Hummer models equipped with a petrol engine and regulated with catalytic converter and lambda probe can be used with E10 petrol:
Hummer H2
Hummer H2T
Hummer H3
Hummer H3T
If in doubt please contact the HUMMER Customer Assistance Centre, e-mail
Hummer.europe@gm.com, international free phone 00800 8680 8800 > Calls from mobile networks may be charged fees. Please consult your mobile phone provider.
Source: GOV.UK – Check if your vehicle can use E10 petrol. Contains public sector information licensed under the Open Government Licence v3.0.
If your Hummer can't use E10
Use E5, sold as super or premium unleaded. Any car that runs on unleaded can use E5. If you have already filled up with E10 by mistake, don't worry: one tank won't harm it. What to do after the wrong fuel →
Own an older or classic Hummer? Read E10 and classic cars.
Questions about Hummer and E10
Can my Hummer use E10 petrol?
Hummer lists which petrol cars can use E10. Check your model and year in the list below.
What if I put E10 in an older Hummer?
A single tank in a non-approved car will not cause damage, according to UK government advice. Fill up with E5 next time and keep using E5.
Where do I find E5 for my Hummer?
In the UK, E5 is sold as the "super" or "premium" unleaded grade (97+ octane) at most larger filling stations. Check the E5 label on the pump.
How else can I check my Hummer?
Look for an E10 label inside the fuel filler flap, check the owner's handbook, or ask a Hummer dealer.