20wt vs 30wt for leaks
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Probably yes. Valvoline High Mileage oil downgrades leaks to seeps and stops seeps entirely in my experience, so first thing I’d try is to switch to a high mileage oil for that problem.
15W-60 for my rear main leak, 30 just goes straight though.
Or, repair it. That's the better choice.
On a $500 car ? Not going to happen.
Depends on how long you plan to drive it. I have bought many cheap vehicles and dumped a lot of money in them but I kept them long enough to get money back in form of no payments. Most of them I got an additional 40k. Always moved up in years although all of them were over 10 years old. Only after I got injury did I finance a 4 year old vehicle then traded it in for the Caravan since it had electrical problems. Typical GM.
I'll drive it until it stops, 5 years so far. Of course I've put money into it, but no more than anything but a near new vehicle...battery, tyres etc. I'm a mechanic, I'm not paying anyone for the upkeep of my vehicle, and able to buy end of life cars to resurrect. Of course I could do the rear main at a fraction of the cost of someone sending it to a shop to do, but I consider it not worth my time and effort.
Jump up a grade or two and put some AT-205 in it (available at AAP and others, it actually works).
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What kind've Honda and how many miles?
07 Acura TL type S J35A8 motor 150k miles. Oil pump and rear main seals weeping.
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You could maybe try a 5W30 high mileage oil. Or like KCJeep said, add some AT405 to the existing oil.
Run the liquimoly motor oil saver. Get it hot after adding. Can be used every 20,000 miles. Recommend m1hm 5w30 or pphm 5w30 in conjunction
Impossible to prognosticate with any degree of accuracy.
The "leak" is a combination of several things ( viscosity, temperature, pressure pushing against it, surface area of the leak, length/depth of the leak, capillaries, properties of the gasketing/sealing material, and their action and a whole lot more)
Changing an oil weight will only help ( not or rarely stop) in cases where the viscosity will offer significant resistance against the total forces working against it.
and make sure the PCV system is clean and working properly.
My 2¢
My 2¢
Any idea by how much oil saver would increase viscosity? 300ml in a 4.5 quart sump?
This is what I am trying to take into the equation also. Using a 30wt or thin 40wt in a car that calls for a 20wt would undoubtedly raise oil pressure. Would this increase in pressure be counter productive for the desired outcome? I guess only way to know would be by experimenting.
Make sure we are talking the same thing- what specifically do you mean by desired outcome?
Experiment.
Poor it full of 0W-16 and put cardboard under it. Now try the same with SAE 70. My money's on the 70.
Poor it full of 0W-16 and put cardboard under it. Now try the same with SAE 70. My money's on the 70.
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