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M1 0w40 ALL THE WAY. Redline may be fine on a race track. I dont take it seriously on the street. The M1 0w40 is an exceptional oil, and there's no reason to choose the Redline over it. Period.

well that sucks? PP/PU was on my short list of oils to consider... Hmm.

I buy M1 0w40 because it's one of Mobil's best oils, and exactly because it meets tough euro performance requirements. I put it in a high output Toyota 4AGE, and I drive that motor a LOT on the highway, kinda like the autobahn. I also run that oil at the track a lot too. I also own several VWs...

Not familiar with the motor... but, that seems pretty hot. I'm assuming its a strokey/torquey motor and 4000rpm generates some high piston speeds. Still, my oversquare I4 1.6L 4AGE will hit 330F running at ~6-8krpms without oil cooling, and hits 265/295F cooled/heated *with* oil cooling, during...

First, a good filter intended for longer intervals is important. Second, don't listen to a bunch of advice, much of which may be misguided. Just run the two oils of interest and compare their performance directly, oil analysis included. Manufacturer recommendations, especially on older...

Originally Posted By: geeman789 Why would M1 waste their time testing for and printing labels for a euro spec that virtually NOBODY in North America knows about, or cares to know about... It would be like an automaker printing all the euro emissions stats for a US consumer... grams per km CO...

Originally Posted By: Oil Changer Slipping? That's funny. So one of the biggest (if not THE biggest) and most respected company in the industry is going to give up market share by producing an inferior product? C'mon, man. Maybe they changed the formula and the HTHS on the 5W-30 is 2.8. The...

So this is a question I've been wondering about. I'm deliberating between M1 0w40, which is a great oil (lots of track duty) and M1 5w30, which appears to be not as great, but would suit my operational conditions better, IMO. I'm running a built 4AGE motor, 11:1 compression (bumped from 9.4...

I do find this failure more consistent with a defect than a service condition extreme. Is this not wire backed media? Is not this precisely what wire backing is designed to prevent? 11kmi is not very severe at all, for something so presumably well built. Will this destroy the motor? Probably...

The level of the fluid (oil) column above sump oil is what drives reverse flow, regardless the position or orientation of the filter. Think of a siphon arrangement. A filter oriented sideways is actually more prone to drain through its outlet port, so in such cases the adbv becomes less...

My guess is the seam is self sealing due to pressure, but obviously some kind of bond would likely be a good thing.

Originally Posted By: NJC Originally Posted By: 440Magnum Originally Posted By: NJC I'm speculating here - but the problem could be weak media (numerous failures are possible) or lacking pitch uniformity at media to end cap bond. I haven't studied other filter designs enough to know if this is...

Originally Posted By: NJC I'm speculating here - but the problem could be weak media (numerous failures are possible) or lacking pitch uniformity at media to end cap bond. I haven't studied other filter designs enough to know if this is typical, but it looks like the pleats are too tight for...

Nice that not all of Purolator's product lines have been effected by the now well-known issues. In this case, it seems fairly clear from the first image that pleat arrangement is fairly optimal, so the lack of tears is not remarkable. 16000 miles sounds a bit much for a high-efficiency...

Originally Posted By: ZeeOSix You don't need to explain it to me; but those analogies you gave are frankly ridiculous. If you look at the outside of box you have no idea what's inside the box unless you open it up and look inside. Sound familiar? There's really no need to beat the dead horse...

Say you know a box had an animal in it, either a bird or a dog. The animal is removed. Then you see feathers in the box. You don't need to find the bird to prove beyond reasonable doubt that the bird was in the box. Or heck, make it even simpler. Looking at the outside of a cardboard box...

Sorry, we disagree. The logic is pretty simple dude.

xray vision would work. Yes, not seeing gaps will not guarantee the filter is safe. Seeing a gap in one or several however, will be a good indicator of a likely failure, and a good indicator that all models or all models of similar production run are prone to failure. As the center tube...

I am not saying it is a full proof way to make sure you are installing a good filter. Maybe that's what youre hung up on? I'm saying flaws can easily be seen through the center tube, in many cases. In such a case, one would be wise to reject the filter, and probably every filter with the same...

Originally Posted By: sayjac Originally Posted By: sayjac ...Bottom line, OP has an excellent result here..... Which, regarding tears (which the OP is concerned about), could mean something, or could mean nothing, depending on additional required information. Nobody is saying the filter...