1000 mile "service"
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Driver
Joined: Aug 2019
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From: Colorado
Pole Position
Joined: Dec 2010
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From: SoCal
Thought I'd share my lab results from my first oil change.
About 1200 miles, no filter change. Only reason I used this lab was because it was free for me I'll post up results from next oil change.
As I expected elevated amounts of copper, molybdenum and silicon. Copper is the only one I can't explain and is the reason for the premature oil change. I put penzoil platinum back in it will do again with filter at 5k. Any gurus have some input on what the copper is from? I've bounced the question to guys around the shop, curious what anyone else has to say. The only other thing that was interesting to me is the weight of the oil, closer to a 20 weight? I'd hope this is intentional and not some mixup like the early owners manual printing errors?
About 1200 miles, no filter change. Only reason I used this lab was because it was free for me I'll post up results from next oil change.
As I expected elevated amounts of copper, molybdenum and silicon. Copper is the only one I can't explain and is the reason for the premature oil change. I put penzoil platinum back in it will do again with filter at 5k. Any gurus have some input on what the copper is from? I've bounced the question to guys around the shop, curious what anyone else has to say. The only other thing that was interesting to me is the weight of the oil, closer to a 20 weight? I'd hope this is intentional and not some mixup like the early owners manual printing errors?
Pole Position
Joined: May 2012
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From: CA
Advanced
Joined: Nov 2012
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From: St. Louis
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From: GA
What's the consensus on diff fluid? Is there a recommended first-time fluid change milestone for it?
Just now noticing on the interwebs that some people believe it should be done after the break-in period on a vehicle, etc. and wondering why I've never heard about this before.
Just now noticing on the interwebs that some people believe it should be done after the break-in period on a vehicle, etc. and wondering why I've never heard about this before.
Instructor
Joined: Jan 2023
Posts: 1,030
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From: TX
What's the consensus on diff fluid? Is there a recommended first-time fluid change milestone for it?
Just now noticing on the interwebs that some people believe it should be done after the break-in period on a vehicle, etc. and wondering why I've never heard about this before.
Just now noticing on the interwebs that some people believe it should be done after the break-in period on a vehicle, etc. and wondering why I've never heard about this before.
Pit Crew
Joined: May 2024
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I think Car Care Nut once recommended either 3/30K or 5/50K for the diff, but I honestly cannot find any proof if that was for the 500 or another Lexus. To me, 3/30K sounds reasonable for a daily driver that gets the occasional spirited drive.
Pole Position
Joined: May 2012
Posts: 2,242
Likes: 1,581
From: CA
What's the consensus on diff fluid? Is there a recommended first-time fluid change milestone for it?
Just now noticing on the interwebs that some people believe it should be done after the break-in period on a vehicle, etc. and wondering why I've never heard about this before.
Just now noticing on the interwebs that some people believe it should be done after the break-in period on a vehicle, etc. and wondering why I've never heard about this before.
Moderator
Joined: Nov 2016
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From: GA
Wondering if I might as well do transmission fluid at 30k as well...
6th Gear
Joined: Apr 2023
Posts: 6
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From: OK
3/30K is what I did with my ISF and plan to follow the same routine for the IS500.
I may hold off on Transmission fluid till 60K.
Interestingly, while one Lexus dealership is happy to drain and fill the transmission fluid, a different Lexus dealership does not even offer this service because it's a "sealed system containing lifetime fluid".
I may hold off on Transmission fluid till 60K.
Interestingly, while one Lexus dealership is happy to drain and fill the transmission fluid, a different Lexus dealership does not even offer this service because it's a "sealed system containing lifetime fluid".
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