Join Date: Dec 2008
Location: Tyler, TX
Thanked 407 Times in 347 Posts
ULSD has about 1$ to 1.5% less energy per gallon, but higher base Cetane, so in most cases you will not see a measureable difference.
Now, your question was for "having to use ULSD", and if you have an '07 emissions engine, that is a completely different animal.
'93 F-250 HD, 7.3L IDI, 5spd - FARM TRUCK
I Support: Trailer brakes an every axle over the towing vehicle's GVW; CDLs for RVers; Safety inspections for ALL vehicles and 6 axle trucks (97K GVW proposal).
Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote - Benjamin Franklin
I vote for LIBERTY!