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  1. K

    Friction or hydrodynamic lubrication

    I have been visiting this topic in my head for many years. If I could run an engine in a hypothetical lab condition eliminating outside influences such as road conditions, terrain, humidity, temperature, wind, drag, etc. With these parameters set, I record fuel economy over a range of engine...
  2. K

    BP Stations

    All our local BP stations are converting to Circle K. What's up with that?
  3. K

    SuperTech PDS from Warren Distribution

    Sent an email to Warren this morning and got a reply by noon. Enjoy!
  4. K

    ST vs M1 And Other Gear Oil Info

    Some info I've gathered the past month. Upfront, SuperTech (Warren) synthetic has better spec's than Mobil1. Enjoy! Pre 2001 Specs Post 2001 Specs @100C @100C w90 13.5-24 w90 13.5-18.5 w140 32.5-42 w140 24.4-32.5 SupertTech Syn @100C @40C VI w90 16.15...
  5. K

    FYI on SuperTech Gear Oils

    I was curious about their oils for LS rear ends so I emailed Warren Distribution and this is what they said. I sent the email on late Friday and received a response by the end of day Monday. Very good response time and very good company. This applies to syn and conv. "Gary, You asked about...
  6. K

    Interesting

    What do think of this... (link removed - language)
  7. K

    Understanding Ford OBD

    I hope this is the right thread. On a 1993 F150 I'm reading an EEC-IV code (334-EVR voltage High). I can trubleshoot that and it's not my question. I purchased a code reader a few years ago because I was tired of frantically county the CEL flashes and writing them down. Good purchase since I'm...
  8. K

    A3 or A5

    Would you be willing to give up the protection of A3 for the fuel economy benefits of A5? Or the other way around? Or is it a wash?
  9. K

    75w-90 Specs

    Did the specs change for 75w-90? If so when? My Ford trucks are spec'd for 75w-90 but, I think, Ford now uses 75w-140. I cannot find a TSB that points to the change and that would be helpful. When I bought the Ranger it came with 75w-90. A year later when they rebuilt the rear axle they put in...
  10. K

    2000 4Runner 3.4L

    Ok, so I couldn't sleep last night so I ended up here. Or was it a bad dream? I went to the Mobil US and EU sites to the oil recommended area and looked up my vehicle. At the US site it recommended 5w-30 API SN. At the EU site (I picked United Kingdom) it recommended 5w-40 ACEA A3/B3 A3/B4...
  11. K

    A5/B5 or A3/B3

    For my friends that understand ACEA better than me... In my 2005 Ranger (85k miles) I use A5/B5 oil. Would you switch to an A3/B3? And why? In my 2000 4Runner (250k miles) I use A3/B3 oil. Would you switch to an A5/B5? And why? I know B3 is outdated but it's what Mobil1 HM lists and mine are...
  12. K

    A5/B5 or A3/B3

    For my friends that understand ACEA better than me... In my 2005 Ranger (85k miles) I use A5/B5 oil. Would you switch to an A3/B3? And why? In my 2000 4Runner (250k miles) I use A3/B3 oil. Would you switch to an A5/B5? And why? I know B3 is outdated but it's what Mobil1 HM lists. This is NOT...
  13. K

    Understanding HTHS

    I came across this article while I was lurking in my "Lubricants" folder. Appoligies if this has been previousely posted. What I was really reading about was the relationship with pistons, liners and rings with lubrication and friction. It was interesting to note that at mid-stroke the rings...
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