General Car Conversation 2024 - part 1
Lead Lap
Joined: May 2010
Posts: 3,991
Likes: 1,616
From: San Diego, CA
Well I don’t have to worry too much about losing 40 lb/ft of torque, as I have roughly 800 lb/ft to play with. Plus, of course, it always gets nothing but premium electrons so I know I’m not losing any.
Lexus Champion
Joined: Jan 2012
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From: Knoxville, TN
Lexus Fanatic
Joined: Nov 2011
Posts: 35,446
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From: ON/NY
Lexus Test Driver
Joined: Jan 2003
Posts: 5,002
Likes: 526
From: Maryland
Well, be sure to use lower-spec cheaper fluids a few grades below the ones that Lexus recommends. As both your seat of the pants dyno and those super-helpful driving videos you posted that clearly showed us the torque curve, both of which were better and much more accurate than any actual data, they clearly have no idea what their own vehicles need and I for one am fully on board with showing Lexus and their so-called "engineers" the error of their ways.
Lexus Champion
Joined: Oct 2019
Posts: 18,225
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From: Ohio
Also keep in mind cheap scanners will show requested advance not actual, so he very well may be seeing the ECU targeting something that it's not achieving
Lexus Champion
Joined: Oct 2019
Posts: 18,225
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From: Ohio
The Toyota trans tuning helps with that in a big way as well, very slow shifting and they back off all power on shifts so they don't ask much of the parts.
Lexus Fanatic
Joined: May 2012
Posts: 68,644
Likes: 4,046
From: Maryland
Remember my S560 had a huge valve cover repair that was caused by clogged oil separators which I am told were caused by my following the owners manual intervals. So if someone wants to buy an S Class and keep it I would do 5k OCIs as my mechanic suggested. I will do them on the S580 to keep my options open. It’s very little money. I may get some ramps and do the in between changes myself just for fun.
LS460, they burn oil as they get older, my Lexus mechanic said the cause was long oil change intervals and he recommended 5k OCIs to try and avoid that happening.
Over maintaining the car will never hurt it. Under maintaining it may.
Well, be sure to use lower-spec cheaper fluids a few grades below the ones that Lexus recommends. As both your seat of the pants dyno and those super-helpful driving videos you posted that clearly showed us the torque curve, both of which were better and much more accurate than any actual data, they clearly have no idea what their own vehicles need and I for one am fully on board with showing Lexus and their so-called "engineers" the error of their ways.
Assuming there is no wear to the knock sensors
Lexus Champion
Joined: Oct 2019
Posts: 18,225
Likes: 1,773
From: Ohio
Id leave it when it’s that old, but I wouldn’t have left it up to that point.
The owners manual is a minimum. Understand that engineers set the maintenance interval to be simple and inexpensive and to meet a goal for vehicle life. If you don’t want to keep the car beyond that life (which is maybe 100k miles? 150k? No more than that) then the owners manual intervals are fine.
Remember my S560 had a huge valve cover repair that was caused by clogged oil separators which I am told were caused by my following the owners manual intervals. So if someone wants to buy an S Class and keep it I would do 5k OCIs as my mechanic suggested. I will do them on the S580 to keep my options open. It’s very little money. I may get some ramps and do the in between changes myself just for fun.
LS460, they burn oil as they get older, my Lexus mechanic said the cause was long oil change intervals and he recommended 5k OCIs to try and avoid that happening.
Over maintaining the car will never hurt it. Under maintaining it may.
LOL, exactly. Made all the more ridiculous by 2k a year mileage which means 6-7 tanks of fuel for a whopping annual savings of $140 lol. I spent twice that on dinner last night.
It will take more than a few miles on one tank. Won’t be a huge difference no but he will be getting the performance the vehicle was designed to give. If that’s not worth $140 a year to him then that’s his choice.
Assuming there is no wear to the knock sensors
The owners manual is a minimum. Understand that engineers set the maintenance interval to be simple and inexpensive and to meet a goal for vehicle life. If you don’t want to keep the car beyond that life (which is maybe 100k miles? 150k? No more than that) then the owners manual intervals are fine.
Remember my S560 had a huge valve cover repair that was caused by clogged oil separators which I am told were caused by my following the owners manual intervals. So if someone wants to buy an S Class and keep it I would do 5k OCIs as my mechanic suggested. I will do them on the S580 to keep my options open. It’s very little money. I may get some ramps and do the in between changes myself just for fun.
LS460, they burn oil as they get older, my Lexus mechanic said the cause was long oil change intervals and he recommended 5k OCIs to try and avoid that happening.
Over maintaining the car will never hurt it. Under maintaining it may.
LOL, exactly. Made all the more ridiculous by 2k a year mileage which means 6-7 tanks of fuel for a whopping annual savings of $140 lol. I spent twice that on dinner last night.
It will take more than a few miles on one tank. Won’t be a huge difference no but he will be getting the performance the vehicle was designed to give. If that’s not worth $140 a year to him then that’s his choice.
Assuming there is no wear to the knock sensors
Heck if you can access hoses leading to them spray cleaner in during oil changes or right before one maybe.