The Random E46/ZHP Question Thread

[san]

Is it ok to use BMW (shell) 5w-30 during summer and use Mobil 1 0w-40 in the winter? I both are approved by BMW, but my question is more towards should I just stick with one type/brand of oil and not switch...


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[Sockethead]

Wandering. And a bit of bumpsteer I guess you could call it. The only way I can put it is that it just doesn't feel "connected" anymore. It feels like all the symptoms of bad FCABs, but I feel like my AKG's wouldn't be worn already.

How are your tires? Sometimes when the tires get below 50% or more the car can start tramlining. In the 7 years I've had my car, the tramlining was always tires. The Dunlops I had on it tramlined from the first day I put them on.

[das boots]

Is it ok to use BMW (shell) 5w-30 during summer and use Mobil 1 0w-40 in the winter? I both are approved by BMW, but my question is more towards should I just stick with one type/brand of oil and not switch...


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I am presently still using M1 0w-40. I know it is too thin for use here in San Diego. I only use the ZHP now only once or twice a week.

[QC_ZHP]

How are your tires? Sometimes when the tires get below 50% or more the car can start tramlining. In the 7 years I've had my car, the tramlining was always tires. The Dunlops I had on it tramlined from the first day I put them on.

Tires look good to sight. Tramlining is pulling towards a side of the road, correct? I don't believe thats it. Its more of left AND right movement, plus a little rougher on bumps now. It 'feels' bushing related as the steering just isn't as tight or sturdy anymore when cruising, under load it feels strong.

[ELCID86]

Tramlining is more the wobble back and forth when you cross the center-line. Pulling to the right could be alignment or the contour/crest in the road.


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"ZHP is a garbage option anyway- just some cosmetic upgrades with a different cam and diff to claw back some of the performance lost fitting those hideous and heavy wheels. Any 330 with a 3.46 diff will smoke a ZHP every time. The whole Mafia thing reeks of childish behavior." - anonymous

[Sockethead]

Tramlining is when the car tries to follow the contour of the road.
Easy way to tell if it's lower LCAB is drive 5mph while someone is looking at the wheels. Slam on the brakes. If the wheel moves towards the back of the car then they are bad

[ELCID86]

Guess so:

Tire Tech Information - Tramlining: Coping with the Ruts in the Road
www.tirerack.com › tiretech › techpage
The term "tramlining" is being used to describe when directional control is disrupted by the vehicle's tendency to follow the longitudinal ruts and/or grooves in the road. It's name could be compared to the tram or trolley driver who does not steer because his vehicle follows the path established by the tracks.


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"ZHP is a garbage option anyway- just some cosmetic upgrades with a different cam and diff to claw back some of the performance lost fitting those hideous and heavy wheels. Any 330 with a 3.46 diff will smoke a ZHP every time. The whole Mafia thing reeks of childish behavior." - anonymous

[az3579]

How are your tires? Sometimes when the tires get below 50% or more the car can start tramlining. In the 7 years I've had my car, the tramlining was always tires. The Dunlops I had on it tramlined from the first day I put them on.

Yep, this happens to me too. My RE-11's and S-04's both did (do) this since they're pretty worn.

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[QC_ZHP]

Hmm...thanks for posting up guys. Good info.

[stephenkirsh]

Call me nuts. But I open up the hood after every run on my vehicles to cool off the engine. And if I forget to close the hood overnight, well....so be it. They're inside the garage anyway. Just sayin'.

Of all the things I've read from enthusiasts, that's one of the weirder/more useless ones lol. I could maybe understand that on an old school turbo.