That's the dosage I use too, ~1:500-600. After 4 tanks with Lucas, ~1.5mpg increase. That's a W8 engine, and 50/50 highway/city. I reset my trip computer tracking MPG when I started the UCL and I am currently averaging ~19.5mpg. Before that, I had logged about 1500 miles averaging 18mpg on the dot.quote:
Originally posted by Rodbuckler:
2oz per 5gal would be too rich. 1oz per 4gal to 1oz per 5gal works best for me. I use it for cleaning and lubrication. I haven't noticed any change in gas mileage, and I keep good records.quote:
Originally posted by Dominic:
I intend to use it as a supplement each tank at 1-2oz/5gal.
Is it attributed to summer fuel blend vs winter? I don't know. But I figure the UCL can't hurt.