Engine Oil recommendations?

[Amotacos]

So I just bought my 88 325 and plan on keeping her for The rest of my life as my daily driver project..
I live in Texas and it's always hot, what oil should I put in her?
Any recommendations for summer oil and winter oil?
Is synthetic oil good for these older cars or should I stay with conventional?

She has 280,xxx miles

Any advice will be greatly appreciated.

[dnguyen1963]

Next time, do a search on this topic before creating a post. This has been beaten to death. At a minimum, Rotella T 15W40.

[jlevie]

See post #10 of http://www.r3vlimited.com/board/showthread.php?t=364705

[ahlem]

My M30 has 421,000 miles and has had Mobil1 15w50 almost all of it's life. The motor has never been opened.

[jeffnhiscars]

My M30 has 421,000 miles and has had Mobil1 15w50 almost all of it's life. The motor has never been opened.

Having decent levels of zddp, this is what I run in my m20s. Inthinkmformtexas 15-40 is too thin especially in summer

[Mwishlist]

See post #10 of http://www.r3vlimited.com/board/showthread.php?t=364705

Holy crap, after reading yet another informative old post of yours last night I was just thinking how awesome it would be to have all of your stuff collected together. Sorry to thread jack but I couldn't post in the other thread, so I just wanted to say thanks!

[jlevie]

You are welcome. I just finished making it easier to navigate to an article of interest. Take a look.

[Amotacos]

Thanks a lot for everyone's input and I did do a significant amount of research and read a few forum debates over oil prior to posting this. I don't know how to link you but jlevie your post was a huge help and I appreciate you taking the time to help out.