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Helped a friend do an oil change just a few days back with one of those, had oil and junk in the threads.

Tired of doing their job for them, a bit of cutting oil is one thing but chips of steel from cutting the threads is another. IIRC Denso filters come clean (and shrink wrapped!) but I haven't bought one lately. I've sworn off Wix for this problem (among other random debris), and a Mahle I got off...

If it's got some miles on it, a 15w40 might work better.

I run this car hard, it gets fed the oil it's specced for when running it hard (euro spec lotus). I think we even went over this last time I posted a UOA. People went quiet after I pulled the data and found M1 0w40 to more or less match the cold viscosity curve of the late 90s 5w30 dino juice...

I'm liking these numbers, car was run almost daily in Detroit through last years awful winter, then sporadically used all spring summer and fall. 1qt top off about 1/3 qt at a time, last top off (emptied the 5qt jug) around the 7000 mile mark. I suspect high silicon may be related to installing...

The max mark on the dipstick is the highest point oil should be in the pan (with plenty of margin for error) to prevent the crankshaft from interfering with it(very bad). Unless instructed to fill past the full line by the manufacturer due to design flaw, you should not do so(though a few mm...

I'd be looking for a stouter fluid or changing what you are using currently twice as frequently.

Originally Posted By: expat I have also run the car in gear while up on a lift. Nada. On a lift the engine/powertrain is unloaded, a failing coil for instance will often free rev just fine, but run terribly under a load. I'm not saying its your problem, but you seem a bit quick to rule it out.

Shaking through the gear lever makes me think you have some fuel and/or ignition issue making the engine shudder.

I'd fill it with dex/merc or even tractor hydraulic fluid before I even contemplated motor oil.

I think I'll run it to 7500, and be sure to post the results.

15w40 diesel oil.

The engine burns negligible amounts of oil, with 10w30 PP I ended up using the whole jug across the 7500 mile OCI and it wasn't very far down(maybe 1/3 qt) when I drained it. It burns a touch less of the M1 0w40. I should also note I often drive the [censored] out of this car, it sees plenty of...

99 Prizm 1ZZ, I changed the oil in late October 2013, M1 0w40, stock size DENSO filter, this is my DD so it was run all through this harsh winter, short trips(5-6 miles round trip) a few times a week, with longer highway trips across town (10+ miles, coolant up to temp mid trip, often made the...

Rotella 10w30, change it when it goes black as previously suggested.