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2013 GS 350 AWD 100K Service

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Old 05-25-19, 02:44 AM
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Zsikd
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Default 2013 GS 350 AWD 100K Service

Recently just joined the Lexus club, but Lexus has been notorious for its reliability. I have the 13 GS 350 AWD, non F-sport, approaching almost a 100K (currently at 95k).

Im the second owner but every single service has been done at the Lexus dealer from the day the car was sold with records available on the Lexus site. Recently just replaced the brakes and rotors (with OEM parts), synthetic oil change and brand new tires. Otherwise, car is fabulous!!

Just want to see/hear, has anyone passed the 100k benchmark and if so, any special recommendations in terms of service? The Lexus dealer does the engine coolant replacement at a 100k but I was thinking of just changing the spark plugs at a 100k (last time was around 58k)... what’s your opinions? Will do the spark plug replacement myself because the dealer charges way too much lol

anyways, appreciate it!
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Old 05-25-19, 05:12 AM
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Cwang
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Transmission fluid and differential fluid. You'll find that internationally they are regular service items for reasons I won't go into.
Old 05-25-19, 05:21 AM
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JDR76
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You don’t need to do the spark plugs. They can handle way more than 40k miles.
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Zsikd (05-25-19)
Old 05-25-19, 06:16 AM
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peasodos
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For some reason on the 450h lexus recommends changing the spark plugs every 100k miles, not sure why they have shorter intervals for the non-hybrid.

I changed the oem plus on my girlfriends Honda accord at 105k miles and although the point was wore down they were very clean. These iridium plugs last at least 100k miles.
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Zsikd (05-25-19)
Old 05-25-19, 06:42 AM
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JeffKeryk
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If the brake fluid has not been serviced, I would certainly include a fluid flush.
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Old 05-25-19, 08:05 AM
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Zsikd
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Originally Posted by Cwang
Transmission fluid and differential fluid. You'll find that internationally they are regular service items for reasons I won't go into.
Should’ve mentioned trans fluid was replaced at 78k. Thanks for the recommendations though. Will probably do the differential fluid.
Old 05-25-19, 08:06 AM
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Zsikd
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Originally Posted by JeffKeryk
If the brake fluid has not been serviced, I would certainly include a fluid flush.
Thank you for the input! Brake fluid flush was done around 90k for the 90k service interval. Should be good for a few more thousand miles!
Old 05-26-19, 01:14 PM
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since u got ur spark plug, brake fluid, tranny fluid done mybe ur next service is coolant and diff fluid. i dont know if they did cabin and engine filter for ur 90k service if not do that plus an oil change? ur next spark plug should be at 120k.
Old 05-26-19, 05:28 PM
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er34
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Originally Posted by peasodos
For some reason on the 450h lexus recommends changing the spark plugs every 100k miles, not sure why they have shorter intervals for the non-hybrid.
Why wouldn't it have shorter interval? The hybrid would spend some of that 100k running with the gas engine off and when it is running, it is typically when under higher load which is when the engine is more efficient and keeps the plugs clean.
Old 05-26-19, 06:52 PM
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AJLex19
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Check for any suspension issues (struts, control arms, out of round wheels). Also if there are any issues with the exhaust system. Those were the two areas that gave me the most trouble on my previous 2GS once I got close to 100k.

I agree with other posters about the plugs, you should be good since it was done about 40k miles earlier. I changed the rear differential fluid on my '13 AWD at 48k miles and it didn't make too much of a drive-ability difference but if I were at 100k, i'd look to change both front and rear differential fluids.

I feel like once you pass 100k and the car has been looked-after well, its a matter of doing the recommended services. Doing anything extra is more about your preferences and tolerances.
Old 05-26-19, 06:56 PM
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richard203
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oh ya forgot to tell you check the struct on all 4. mines started to leak on all 4 on 75k miles and 1 of them is major leak. im waiting for 1 more to have major leak before changing all 4 to aftermarket ones.
Old 05-27-19, 10:27 AM
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Originally Posted by richard203
since u got ur spark plug, brake fluid, tranny fluid done mybe ur next service is coolant and diff fluid. i dont know if they did cabin and engine filter for ur 90k service if not do that plus an oil change? ur next spark plug should be at 120k.
Definitely going to get the engine coolant and diff fluid done. The cabin filter was replaced at 90k and just got an oil change at the Lexus dealer! Thanks for the input 👍🏼
Old 05-27-19, 10:31 AM
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Originally Posted by AJLex19
Check for any suspension issues (struts, control arms, out of round wheels). Also if there are any issues with the exhaust system. Those were the two areas that gave me the most trouble on my previous 2GS once I got close to 100k.

I agree with other posters about the plugs, you should be good since it was done about 40k miles earlier. I changed the rear differential fluid on my '13 AWD at 48k miles and it didn't make too much of a drive-ability difference but if I were at 100k, i'd look to change both front and rear differential fluids.

I feel like once you pass 100k and the car has been looked-after well, its a matter of doing the recommended services. Doing anything extra is more about your preferences and tolerances.
I probably should change the differential fluid as it hasn’t been changed in I believe ~50K! If you remember, how much was the service at the dealer, or did you have it done by a local shop? My goal is to keep the GS for a long time, I love the car.

My shocks and suspension components seem to be holding up very well. I have the adaptive variable suspension on my GS but recently had a 160 point inspection for free and everything checked out. Will check again at exactly 100k and keep you all updated. Thanks for the input!
Old 05-27-19, 10:32 AM
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Zsikd
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Originally Posted by richard203
oh ya forgot to tell you check the struct on all 4. mines started to leak on all 4 on 75k miles and 1 of them is major leak. im waiting for 1 more to have major leak before changing all 4 to aftermarket ones.
Wow, that stinks but I definitely will check my suspension components again at 100k. Had a 160 point inspection at 94k and all checked out. Hopefully stays that way haha
Old 05-27-19, 02:25 PM
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Originally Posted by Zsikd
I probably should change the differential fluid as it hasn’t been changed in I believe ~50K! If you remember, how much was the service at the dealer, or did you have it done by a local shop? My goal is to keep the GS for a long time, I love the car.
@Zsikd I did it with my local guy and bought mobil gear oil. I believe the total with labor was around $100.
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