Sampling point for oil analysis...

[JHansen]

All you who are sampling on a regular basis-where do you take your samples? At work we sample our engines on a regular basis (all except the Ajaxes-pretty hard to grab a sample on the fly from an engine without a pressurized lube system )-all are equipped with a special fitting that ties into the engine's lube oil system. There's a hose that's inserted into this fitting-when you push it in it opens a spring-loaded valve and lets you grab a sample. When the bottle's full pull the hose back out of the fitting, screw the dust cap back on and you're good until next time.



I have access to one of these fittings-but I need to know where to put it! I see a port on top of the oil filter housing-how about there? Nice and accessible-just not sure which side of the filter it accesses... would it really matter? Never got too worked up about taking samples with the dino oil-I just dropped it every 5000 km (about 3000 miles). But I just made the switch to synthetic-so I'd like to extend my drain intervals-and I can't see a reliable way to do so without sampling...



Thanks in advance



Jason

 

[LSMITH]

The port on the oil filter is a good place to get the sample. You can put a tube on your fitting and run some oil through into the fill hole in the valve cover to flush the port and tube to be sure your sample is not contaminated.

 

[JR2]

Its probably the wrong place to do it, but I take mine out of the oil pan about half way through the draining process. I run the truck for a while to get the oil all hot and cirrculated and then drain it right away. I have a finger touch valve that makes it real easy.



I would think you could do the same with syn and but pour the stuff you drained out to clear the port back in the engine.

 

[JHansen]

I've got a Femco drain plug on the old girl-but I don't want to lay under it anymore than I have to -gettin' lazy in my old age! I think I'm gonna put a sample fitting in that extra plug on the oil filter housing-easy to access means that I might actually sample it when I'm supposed to



Jason