what weight does everyone here run in there third gens.? i recently aquired mine and before i get it on the road one of the few things i want to do is change the oil. my Haynes manual says regular 30w. this seems real thick to me?

 

Mobil 1 10w30

 

5w30

 

my haynes manual list several oils depending on temp. i'd use 5w-30 or 10w-30

 

Exxon/Mobil polyalphaolefin based 15W50 - summer driving only.

 

lol. i find this thread amusing. i think youll find a hundred different types of oil being used. i think whats more important is how often you change it.

 

No offense but...

Maybe something along the lines of 'Best Oil' or 'Oil preference' or some such. Should give you hours of reading.

 

What Devil said. The search is your friend.

<A HREF="https://www.thirdgen.org/techbb2/search.php?s="> I like this oil</A>

 

ditto!!!

 

15W-50 in the summer and 5W-40 or 0W-40 in the winter, all Mobil 1

 

All our race motors get broke in using Valvoline straight 30W, first batch initial break in, 1 more fill up to help seat the rings, then switch over to Mobil 1 5W-30 full synthetic

 

0w40 cant be good for your motor

 

I like synthetics and I've had good luck with them. Now, agreeing with the comment about the search feature, there are a lot of members (checks drawer for clean nomex underwear) that are running Wal-Mart brand synthetic (and filter, btw).

If what has been posted is correct, Wal-Mart brand synthetic is actually Valvoline. Wal-Mart brand oil filters, if the posters are correct, is made by Champion Labs, the same company that makes the Mobil 1 filter, although it is not the same construction as the Mobil 1 filter.

(Dusts off flame suit).

 

Mobil 1.

 

Mobil 1 15w 50

 

Actually, the Wally's synthetic is made by Warren distributing. Who knows what they blend it with??
Plenty of info on the BITOG forum on this.

 

I've always run 20W-50 year 'round, and I've been using Valvoline MaxLife since it's come out. Depending on where you live, you might not want that weight, but I'd bet your 24 year old engine would appreciate MaxLife in either 10W-30 or 10W-40.

 

i run str8 30 always

 

mobil 1 10w-30

 

My brother works in the oil business, he talked to the guy at Mobil who invented Mobil 1. He recommends M1 15-50 for the summer and 0w-40 for the winter for a gen 1 iron SBC.

 

Mobil 1 15w50 with a AC Delco ultraguard gold filter (UPF25)

 

Mobil Drive Clean 10W-30 with an AC-Delco PF454S filter. The best out there? No, not by a long shot I'm sure, but I was short on cash and needed cash to finish the rest of my tune-up as well, so its what I bought. Total cost of oil change? $10.44 and tax

 

Always 20/50 for me...

 

my engine isnt stock but i run 20w50 in my 383... this is with a high pressure/volume oil pump to move that sludge along

once its broken in tho i'm going with the heaviest synthetic

ow40 ... thats real thin i would never use that

 

It was interesting to hear what some of the NASCAR crew chiefs say about oil. I believe it was one of the Earnheart or Rousch crew who said they have tried all sorts of weights but finally settled on 0w30 synthetic. He said that every synthetic weight they tried came up with the same results--no discernable wear after a 500 mile race. Pretty conclusive in that regard.

But I agree that if you change your oil every 3000 miles it doesn't really matter what modern motor oil you use. It will be fine

 

L03 usually drinks havoline or whatever else is cheap... as thick as they sell it (it burns oil)


the 400 gets mobile 1 and the oil is changed once every 2 months (roughly 1500-2500miles)