So over the past 9 years I have owned 2 GM trucks with a 5.3L engine. First one was a 2004 Chevy that was driven routinely, if not daily as the family vehicle for a few years and was then retired to just weekend truck duties. I ran valvoline conventional, durablend, and synpower in it and later used QSUD. Over many OCIs ranging 3-4K at that time I knew what to expect regarding the small amount of iron paste stuck to the magnetic oil drain plug. The truck had only about 85-87k on it when totaled by a hailstorm. It was replaced by a 2003 Sierra that is used also for typical weekend truck duty hauling and light towing. Only drive 3-4K/year so I change the oil and filter annually. Previous owner used vwb. When I changed oil first time in it, I saw the typical amount of residue on the magnet. Next OCI of QS conv I saw pretty much the same at which time I installed Magnetec 5w30 and a Fram Ultra. This was slightly over one year ago. Changed it today and was really impressed with just how little iron on the magnet. I touched the drain plug to the frame and it was strong enough to hold itself up. I know this is only one data point for Magnatec but it really seems to be good stuff. It may have been the oil, the Fram Ultra or maybe the mild winter we had resulting in the low observed iron. Just saying all this because if you are on the fence about using it then give it a try! I think it's really more than just marketing at this point.
Today I installed Maxlife and another Fram Ultra. Was hesitant to use the currently full syn Magnetec in a 14 year old engine with almost 140k on it. Wish they had stayed with a blend.
Today I installed Maxlife and another Fram Ultra. Was hesitant to use the currently full syn Magnetec in a 14 year old engine with almost 140k on it. Wish they had stayed with a blend.
