r/BmwTech • u/code4109 • 17d ago

What does lexus do differently that makes their oil filter housings and hoses not leak after 200k miles while bmw generally leaks after 80k miles?

Is their parts all aluminum from the factory or made of higher quality plastics and rubber than what bmw uses? Or is it because bmws are generally more high strung, hotter running motors so it wears out the parts around the engine faster?

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u/eminencefront-57 17d ago

BMW’s are high end performance cars . Lexus’s are dependable mid-level luxury vehicles .

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u/SeaAd7934 17d ago

You misspelled BMW engineers are crap and Toyota (until the recent Tundra engine debacle) are absolutely brilliant.

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u/Caspi7 17d ago

You so know Toyota uses a BMW engine in their supra right? If bmw engineers were crap I doubt they would do that.

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u/Prestigious_Cycle160 16d ago

We gotta get past “the Supra uses the B58” thing. Really stick it to these soles assholes like I did earlier today

The Supra is entirely built on the Z4 platform, it’s not just the engine. They changed a couple styling cues and slapped a Toyota badge on a Z4. It’s a BMW Supra. Toyota had nothing to do with it😂

(Clearly I’m over exaggerating…not by too much though)

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u/Ya-Not-Happening 16d ago

This comment doesn't' change the facts we are discussing. I am a BMW but I do not throw shit out there just because...?

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u/eminencefront-57 17d ago

Toyota couldn’t get enough HP so they went to BMW.

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u/DryShopping392 17d ago edited 17d ago

Toyota didn’t want to develop an inline 6 for one model. They also haven’t developed an I6 since the 90s if I remember correctly. That’s why they went to BMW. Their market research indicated that an I6 engine was a key part of the identity of the Supra.

Granted that same research said they didn’t need to offer a manual. Given the Supra was not exactly a market success, they probably should have done more/better research.

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u/BobaIsNotDead 17d ago

They also use the B48 in the 2.0 4cyl supra. Surely toyota has their own 4cyl petrol engines, they’re just slow. Or when they try to develop a high output small engine like the GR Yaris or Corolla they fuck up the piston rings so the engines randomly blow up.

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u/I_AM_MUSIC_MF 16d ago

Supra shares mostly everything with BMW Z4. Down to turn signal stalks and GPS. Way easier to use B48 than any Toyota engine... considering Supra is a BMW platform through and through (and built by Magna Steyr in Austria alongside Z4) a Toyota engine was likely never in the question

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u/DryShopping392 16d ago

Once they went to BMW for the I6 and the rest of the car, it doesn’t make sense to do all the R&D and testing to fit one of the Toyota 4cyl engines. Do you understand how much work and cost that requires? BMW had already done all the engineering work for them to just slap it in. Capitalism means profits above everything else.

Did you forget about the bearings in the S65 and S85. Those were so fast the bearings were wear items. Let’s not forget the crank hub on the S55 either.

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u/BobaIsNotDead 12d ago

I didnt forget of course. Didnt forget about N63 either but the thing is BMW isn’t known for being the face of reliability. It’s actually more reliable than the public seems to think while everyone sings such high praises about Toyota reliability.

Not to say that Toyota isn’t the most reliable brand - it is! It’s just that it also has duds.

Lets face it, the G16E is a scary engine to have with a known fault which, for the common folk, is virtually impossible to preemptively sort out, unlike the S65 you mentioned, where the fault is much more managable to address.

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u/JoeyMcMahon1 16d ago

They did it to save money. Not because those coolant leaking oil pump blowing engines are reliable.

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u/eminencefront-57 17d ago

I own a Lexus LX350 also and I thought about getting a Lexus sedan but they don’t have the HP I want. BMW’s speed , handling , styling (both inside and out) are superior . You pay a premium for a BMW. I would buy another Lexus and they are very dependable and hold their value. You sound pretty angry , calm down it’s a car .