Recent content by RPMster

  1. R

    how low is too low for a 6 quart engine oil capacity

    With good synthetic oil, a decent filter, and appropriate OCIs, your engine should be fine at 2 qts low. If you work it real hard, then you should not let it drop below the low mark on the dipstick (1 qt low) for various reasons.
  2. R

    2002 chevy tahoe 5.3 oil selection

    It's totally normal for some engines to use a quart per 1,000 miles after they surpass the 200,000 milestone, especially if you stick with the original recommended grade (20 or 30). Using a 40 or 50 weight synthetic or syn-blend will not hurt a high mileage engine. It will help minimize...
  3. R

    Reman CV axle = good, new aftermarket = bad

    Bumping this old thread since I just had this same experience with my 2006 Sonata. Installed a new Trakmotive aftermarket axle (LH) and it shuddered terribly when accelerating between 25 and 40mph. Also had a pronounced vibration at certain highway speeds. Took the car to a shop, and they said...
  4. R

    API SP rating announced.

    <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted by JohnnyJohnson</div><div class="ubbcode-body">And here I'm all jumping up and down excited about API SX!</div></div> API SX, the latest in high-tech protection for all types of shafts <img...
  5. R

    Visc. @ 100°C after shearing: 10W30 HM vs 0W40

    <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SR5</div><div class="ubbcode-body">Both the M1 oils are A3 rated, which means they need to pass a 30 cycle shear stability test, and "stay in grade". Still my money is on the 10W30 HM, but I really don't know, just a...
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    Visc. @ 100°C after shearing: 10W30 HM vs 0W40

    <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 69GTX</div><div class="ubbcode-body">A nearly 1 pt "head start" is pretty formidable. I think the 0w-40 wins out in the end, though maybe not by much. </div></div> Correct, but then the question is this: if the 0W40...
  7. R

    Visc. @ 100°C after shearing: 10W30 HM vs 0W40

    Actually, from what I've gathered, it is not uncommon for M1 0W40 to shear a lot more than that (down into the 10 range). As an added note to my original post, I suspect we would see a similar pattern between a 5W30 and a 5W20, with the 30 shearing a lot more than the 20, over thousands of...
  8. R

    Visc. @ 100°C after shearing: 10W30 HM vs 0W40

    The general consensus over the years has been that oils with wider cold/hot viscosity spreads (e.g. 0W40) typically show a higher % of shear than oils with a narrower viscosity spread (e.g. 10W30). Let's compare M1 0W40 and M1 10W30 HM. Both start with a similar hot viscosity rating, with the...
  9. R

    OK to use an SL oil ?

    It's fine to let an SL oil sit for years in temps below 0 F, as long as you remember to microwave it for 2 to 3 minutes per quart before using it. The microwaving will re-animate the elves out of their chilly dormancy, and then they'll get to work quickly to re-condition the oil's ingredients at...
  10. R

    4Runner V6 0w40 M1?

    Look out, it's gonna blow! <img src="/forums/graemlins/57.gif" alt="oilburner" title="oilburner" height="62" width="182" /> (sarcasm) I've been running M1 0W40 in my Sonata V6 for years, and the owner's manual specs 5W20 through 10W30. With almost 170,000 miles, my engine is running as...
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    Multi-Vehicle ATF Fluids vs OEM?

    <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Darris</div><div class="ubbcode-body">What is the current thinking on ATF's for older Nissans (pre CVT Altima 2.5 2002-2005)? Nissan has backspec'd this quite a few times to the point where I've lost track of which...
  12. R

    Will a 20w60 burn less oil than a 20w50

    How about this: drive the car into a tree (or a ditch) and then you'll have an excuse to buy a new car so you can stop wasting your time on this. Just remember to fasten your seat belt first! Or, you could enter the car into a demolition derby. If it survives, then at least the body will match...
  13. R

    Will a 20w60 burn less oil than a 20w50

    You could try a 50/50 mix of this stuff with 20W50: <img src="" class="post-image" align="center" alt="" /> <img src="/forums/graemlins/57.gif" alt="oilburner" title="oilburner" height="62" width="182" /> <img...
  14. R

    How about creating "Technical" sub-forums here?

    Yes, I agree, Internet forums in general are full of mindless nonsense. And yes, the mindless nonsense does have its place (mostly as a source of entertainment). And yes, when we have the time to sift through the rubble, we do occasionally find nuggets of gold, when we're lucky. I don't see...
  15. R

    How about creating "Technical" sub-forums here?

    I supposed we could just listen to finger wagging Nanny McPoppins and kill this discussion right now? And that's another thing I see here. How about some meaningful discussion rather than authoritative "I'm right, you're wrong" types of comments here. I'm not proposing doing away with the...