3-Series (E46, E90)Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.
I have a 1999 bmw 323i it has roughly 73500 miles on it. I need to change my oil and plan on doing it myself. I need to know exactly how and what type of oil to use. I have heard alot of different things. Can someone please help me?
buy some AMSOIL 10w-30....its the only real synthetic oil on the market. it costs anywhere from $5-$9 per quart(depending on which kind), but, you only have change oil 15k-25k miles. Comes with a full guarantee and if it ruins your motor they replace it free of charge.
Is it or is it not true that BMW started selling synthetic oil in their engines only a few years ago? I do not know for sure myself, but did 99's even come with synthetic?
There's nothing wrong with standard motor oils in a motor. however, they do need to be changed every 2-3000 miles, making the synthetic have a real advantage in longevity.
Regarding instructions? The oil filer is located in a canister at the front of the engine, top side. You unscrew either a metal screw or larger plastic screw to change the oil. I think I actually have one of the large sockets I may never need again if anyone wants to buy it. I know 97 came tht way.
You will also want to purchase your oil filters from a BMW dealer.
I just re-read your post and since your rig has 73K miles on it there is a chance of synthetic oil causing oil leaks on older /higher mileage engines.
This is because of the excellent lubricating qualities of synthetics.
I would still go with a Mobil 1 or other synthetic, but you need to be aware of this.
bmw's come with castrol synthetic 5w-30. I just switch to 0W-40 from Mobil 1. Per other replies, just make sure you use any synthetic oil and you'll be fine. Just make sure you don't mix synthetic oils. If you have castrol synthetic in there then don't add Mobil 1 synthetic in between changes since other synthetics don't bond with other synthetics.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.