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U20 5 spd Transmssion Oil Recommendation

Posted: Fri Jul 06, 2018 1:47 pm
by mcdadeth
Hey: Just going to change the oil in my 69 2000 5spd trans. This one is the Borg Warner trans. What oil is recommended for these trans?

thomas

Re: U20 5 spd Transmssion Oil Recommendation

Posted: Fri Jul 06, 2018 4:59 pm
by mcdadeth
I am looking more for a gade recommendation and synthetic vs non synthetic, versus a brand recommendation.

Thanks,

Re: U20 5 spd Transmssion Oil Recommendation

Posted: Sat Jul 07, 2018 2:38 pm
by Gregs672000
Don't know how it will work with the BW box, but Swepco is the way to go... considerable temperature change... the stick doesn't get hot anymore.

Re: U20 5 spd Transmssion Oil Recommendation

Posted: Sun Jul 08, 2018 9:42 am
by mcdadeth
Thanks. What grade of oil do you recommend?

Thomas

Re: U20 5 spd Transmssion Oil Recommendation

Posted: Sun Jul 08, 2018 12:49 pm
by Linda
Has to be GL4 with the Warner box because it has brass in it. Don't think Swepco works. Lots of threads in archives.
Linda

Re: U20 5 spd Transmssion Oil Recommendation

Posted: Sun Jul 08, 2018 1:36 pm
by Gregs672000
IMHO, it would be worth checking with the folks at Swepco to see what they recommend. I was very impressed by the change that occurred in the trans regarding temps. It had standard Valvoline in there before, and Will suggested the Swepco. The stick no longer gets hot, which means there is a lot less friction going on.

Re: U20 5 spd Transmssion Oil Recommendation

Posted: Sun Jul 08, 2018 8:15 pm
by ppeters914
Curious, Greg, if you ever tried Redline?

Re: U20 5 spd Transmssion Oil Recommendation

Posted: Sun Jul 08, 2018 8:34 pm
by Gregs672000
Nope. No opinion :-)

Re: U20 5 spd Transmssion Oil Recommendation

Posted: Mon Jul 09, 2018 2:15 pm
by SLOroadster
Yes, the SWEPCO should work. Its an MT1rated gear oil and will be safe for brass synchros. I researched this heavily before running it in my M3 transmission.

I have also run Redline of multiple types. I had a 5th gear failure every time. Never had a 5th gear failure with the SWEPCO. The transmission ran hotter with the Redline as well. I'm not impressed with Redline stuff.

Will

Re: U20 5 spd Transmssion Oil Recommendation

Posted: Mon Jul 09, 2018 2:41 pm
by bakerjf
I’ve used both too. Lots of heat and poor shifting with Redline. Zero issues with Swepco.

Re: U20 5 spd Transmssion Oil Recommendation

Posted: Mon Jul 09, 2018 6:46 pm
by Red Baron
Where is the location of the filler tube for adding trans oil? Also, which Swepco oil type?

Re: U20 5 spd Transmssion Oil Recommendation

Posted: Mon Jul 09, 2018 7:14 pm
by GeoffM
Any good quality GL4 80/90 will do.

Pepsi, Coke, Ford, Chevy whatever...

Re: U20 5 spd Transmssion Oil Recommendation

Posted: Mon Jul 09, 2018 7:35 pm
by ppeters914
GeoffM wrote: Mon Jul 09, 2018 7:14 pm Any good quality GL4 80/90 will do.

Pepsi, Coke, Ford, Chevy whatever...
Times like this I wish the forum software had a LIKE button. :lol:

Re: U20 5 spd Transmssion Oil Recommendation

Posted: Tue Jul 10, 2018 12:44 am
by pebbles
Red Baron wrote: Mon Jul 09, 2018 6:46 pm Where is the location of the filler tube for adding trans oil? Also, which Swepco oil type?
Pepsi, Coke, Ford, Chevy? :smt003
No tube. Pipe thread plug. Left side of case, above drain plug, Datsun SPL311, SRL311.

Re: U20 5 spd Transmssion Oil Recommendation

Posted: Tue Jul 10, 2018 10:41 am
by Gregs672000
I hear you on the "personal preference"... but honestly in MY experience (one transmission) the Swepco was an immediate and clear change in temps, and the pervious oil was not old. No dissing Valvoline (I run their VR1 oil), but...