Valvoline MaxLife High Mileage SAE 15W-40 Heavy Duty Motor Oil 1 Gallon

from Bruce

Top Class Oil! If you have an older Diesel that has some minor leaks and seeps, a couple of changes with this and it will help an amazing amount. Also, if you have 'old school' Gasoline engines that run Flat Tappet Cams and Lifters, this oil is very high Zinc which will keep them from wearing. ...

from Pete

The thing i like best about valvoline is NO PARAFFIN. If u have ever taken apart an engine and seen the sludge, thats the paraffin. Not good for your engine

from Randolph

This is the oil for my Cummins engine. Change every 5-6000 miles including Fleetguard oil filter. 260,000 reliable mile and counting. Walmart has the best price around, and can't beat free shipping within 48 hours .

from donald

ive been running this in my 7.3L powerstroke for 2years and atleast 80k miles. it seems to last longer than conventional oil. with the HEUI engines you can feel when the oil starts to degrade. its even approved by fords new strict oil standards.

from Kenworth

I use it in my Volvo semi every 25,000