# What weight oil do you use?

**URL:** <https://forums.speedlife.net/t/what-weight-oil-do-you-use/45354>\
**Category:** NYSpeed Automotive\
**Created:** [March 20, 2008, 3:29pm UTC](https://forums.speedlife.net/t/what-weight-oil-do-you-use/45354 "2008-03-20T15:29:54Z")\
**Posts on this page:** 1\
**Showing post:** 50

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**Author:** ![squid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/squid/32/4984_2.png) [@squid](https://forums.speedlife.net/u/squid)\
**Post date:** [March 24, 2008, 3:02pm UTC](https://forums.speedlife.net/t/what-weight-oil-do-you-use/45354/50 "2008-03-24T15:02:07Z")

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> [@Fry](#):
>
> For those interested, here’s a link to a free oil sample collection kit. You then send it to the lab for analysis for $22.50. Over the next year I am going to test my oil twice. Once at 3k and once at 10k miles. That way I will know if I’m really waiting too long by going 10k miles.
> 
> [http://www.blackstone-labs.com/free\_test\_kit.html](http://www.blackstone-labs.com/free_test_kit.html)
> 
> :tup:

I’ve used a service before, not this one though. It found a bearing problem I had in a 200sx.

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