This is the 1st time I've used this product. Wanted to stop an oil leak coming off the rear of my E150 van's engine from either the rear seal or pan gasket. Can't really tell which is the source. The van had 93K miles on it.
Anyway ran the Rx a little in excess of 600 miles with clean oil, Havoline 5W30. It stayed very clean. Dip stick remained as clear as when the oil was new. When drained, the oil had the consistency of water, which was a surprise to me, and may explain why it consumed a little. Dip stick was down about an 1/8 of an inch. Normally the van doesn't start to use oil until 2 to 2.5K miles after the oil is changed. When I cut open the Fl-1A filter, it was perfectly clean to the naked eye. No sludge + no gunk + no nothing must = a clean engine to begin with I guess.
As an aside, I was impressed with the Motorcraft filter. Solid construction. 1st time I opened one of those. I know many express the opinion that it has a Pure 1 media or a restrictive media at least. Again, to the casual observer, sure looked like a normal filter media to me and certainly not one prone to restriction from tightly packed material. I seriously doubt it has a Pure 1 media. I've cut those open before.
The leak? Well, it has definitely slowed down. Previously there would have been a drop or two on the garage floor overnight. Not a single drop has hit the floor since the Rx was put in about 3 weeks ago. There is still some new seepage on the outside of the pan, but no drops. I'm pleased with that so far. Only time will tell if its a sustained change.
Anyway ran the Rx a little in excess of 600 miles with clean oil, Havoline 5W30. It stayed very clean. Dip stick remained as clear as when the oil was new. When drained, the oil had the consistency of water, which was a surprise to me, and may explain why it consumed a little. Dip stick was down about an 1/8 of an inch. Normally the van doesn't start to use oil until 2 to 2.5K miles after the oil is changed. When I cut open the Fl-1A filter, it was perfectly clean to the naked eye. No sludge + no gunk + no nothing must = a clean engine to begin with I guess.
As an aside, I was impressed with the Motorcraft filter. Solid construction. 1st time I opened one of those. I know many express the opinion that it has a Pure 1 media or a restrictive media at least. Again, to the casual observer, sure looked like a normal filter media to me and certainly not one prone to restriction from tightly packed material. I seriously doubt it has a Pure 1 media. I've cut those open before.
The leak? Well, it has definitely slowed down. Previously there would have been a drop or two on the garage floor overnight. Not a single drop has hit the floor since the Rx was put in about 3 weeks ago. There is still some new seepage on the outside of the pan, but no drops. I'm pleased with that so far. Only time will tell if its a sustained change.
