Recent content by 19jacobob93

  1. 19jacobob93

    Best Inline-6 ever made?

    The bottom ends will cop anything, but head work is absolutely necessary if you are venturing beyond stock outputs though. I've seen and heard of a few cases of the heads lifting from the block after a spirited sesh! This is the reason my brother in law wouldn't take his XR6T to the skids cause...
  2. 19jacobob93

    New to me W140 and some questions

    I knew it existed and never tried it until the other day, but the autos are designed to set off in second gear to avoid creeping and also to provide a gentler experience for the passengers. If you shift the lever down to '2' it sets off in 1st. I tried this out when I was at the front of the...
  3. 19jacobob93

    New to me W140 and some questions

    Cheers! And yes they are sheepskin covers. Cost the previous owners around $2k to have them custom made! I let her keep one for her ML500 so now I just have the driver's seat, arm rest, and have since found a matching steering wheel cover. They are great for keeping the temperature stable and...
  4. 19jacobob93

    Best Inline-6 ever made?

    Absolutely. In their final turbo form the XR6 Sprint was nudging 500hp + 480ft/lbs from factory
  5. 19jacobob93

    Best Inline-6 ever made?

    My previous and current daily driver have been I6s, it's one of my favourite layouts. I'm surprised the Mercedes M104 only got mentioned a couple of times, they have definitely got to be up there just aren't as popular or commonly accessible as other brands. I know of one with over 600k miles I...
  6. 19jacobob93

    Who else notices used GDI oil differences?

    Even the tiny NA 1.6 GDI in my Accent is the same, turns very dark, almost diesel engine levels, and reeks of fuel. Viscosity doesn't take too much of a hit so I know the fuel smell isn't extreme dilution, plus it gets driven for hours most days. The oil consumption issues in those Theta engines...
  7. 19jacobob93

    Cooler engine temps with higher viscosity?!

    Through the galleries yes, but the oil on the heated internal components (valve train, pistons, cylinder walls) is not under pressure, and this is where viscosity is a factor in the rate at which it returns to the sump to be cooled. No one is worrying, I just had an contradictory observation...
  8. 19jacobob93

    Cooler engine temps with higher viscosity?!

    That is some serious mileage. I have never personally seen damage caused by using thicker grades (20w50) although I can imagine it certainly would in colder climates. When working on my engines I've noticed that regardless of viscosity, the valve trains on all cars are designed to hold a bit of...
  9. 19jacobob93

    Cooler engine temps with higher viscosity?!

    Well the theory is as I've read, that thinner oils cause less drag on internal parts, leading to higher engine efficiency and less heat production, and they also dissipate heat better as they flow faster, carrying the heat back to the sump. According to a few posts I've read on here some people...
  10. 19jacobob93

    Cooler engine temps with higher viscosity?!

    Hello all, I've been experimenting a little bit with my W140. When I purchased it, it had Toyota 10W30 in the sump as the PO got it serviced at the local Toyota dealership. It was overfilled about a litre which is a big no-no on these M104s and it even says so on the fill cap. I sucked a bit...
  11. 19jacobob93

    New to me W140 and some questions

    I hear that a lot but it handles itself just fine. The gearing is short as it sits at around 3,000rpm on the highway, but these are programmed to set off in second gear and it accelerates fine. They only set off in first if you apply more than half-3/4 throttle from standstill and it takes off...
  12. 19jacobob93

    0W-40 for 223k mile 95 Mercedes E320?

    Btw the head gasket 'failures' on these almost always only leak oil externally. It can be lived with for as long as you can stand the mess on the garage floor and almost never leads to overheating or milkshaking, and as I mentioned even this can be remedied with a retorque. I feel that we are...
  13. 19jacobob93

    0W-40 for 223k mile 95 Mercedes E320?

    They are but from what I've read (by a Merc Tec too) they can be reused two or three times, not that I would. If I was to pull the head off I'd replace them though, or you can replace them in order one by one. In the correct order, loosen them up one at a time and then retorque to 55Nm. When...
  14. 19jacobob93

    New to me W140 and some questions

    Just a wee update. I retorqued the head bolts (55Nm +90+90) which almost completely stopped the oil leak. These M104 engines seem to famously leak through the head gasket externally at the back of the block where all the oil pressure goes through a single gallery. I read that a retorque will...
  15. 19jacobob93

    0W-40 for 223k mile 95 Mercedes E320?

    I have recently picked up a W140 with the same engine. When I first bought it the service records showed that it had received 10W30 at the local Toyota dealership, and they kindly WAY overfilled it which is a big no no on these engines, and it's not recommended to fill them past the halfway...
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