lower unit lube

freespool50 · 11-08-2007, 10:18 AM

<P dir=ltr style="MARGIN-RIGHT: 0px">i have 1978 70 evinrudes. can i use my 80-90 gl5 gear oil for car diffs? or do i trot on down and get some specific marine gear lube ?

thanks guys

Telum Pisces · 11-08-2007, 10:21 AM

Nope, you need the marine application lower unit oil. It has additives to help keep lubrication in case of water intrusion.

At least that was what I was told when I stayed at the Holiday Inn Express.

oke

freespool50 · 11-08-2007, 10:31 AM

yes i read about the additives. its just that i know sometimes other products will work and i believe in the conspiracy of packaging the same product in different packaging, calling it something different and charging more. mobil was caught doing this recently with some of their diesel oil products.

Telum Pisces · 11-08-2007, 10:34 AM

I understand your concern, but I have been told this by very reliable people that have been in the business a LONG time. Standard gear lube will probably work just fine as long as there is never any water intrusion. But the problem arrises when water gets in. Unless you change your foot oil everytime you get back in, you usually don't know that some water got into the oil until it's too late. I preferably would like a little cushion of time where the oil will still somewhat provide lubrication with a small amount of water in the oil.

freespool50 · 11-08-2007, 01:33 PM

went and got some lube, well i didnt actually go. i picked up the phone and called napa and they brought me 5 10oz tubes. shoulda dont that in the first place. thanks

coueyone · 11-08-2007, 05:18 PM

NAPA the only way to fly

DOUBLE "D" & LV · 11-09-2007, 08:23 AM

i can't rememberwhat yearsthey had them, but is yours an electric shift unit? if so you have to use a special lube. i believe it is type c for electric shift. if not, disregard.

johnsonbeachbum · 11-09-2007, 12:08 PM

If there is a marine grade of GL-5 gear lube, then why is there no API or other specification numbers to confirm it is for marine use?

Seems if there was a difference the manufacturers would label such other than merely adding the word "marine" to the label.

The Mantenance Shoppe · 11-18-2007, 09:54 AM

Use royal purple 75w90 full synthetic. 12.99 a quart you can't go wrong. www.royalpurple.com

It is the only oil brand we stock and use.

Deeplines · 11-18-2007, 08:34 PM

Hey FRED, Have you used it yet?

If not take it back. I have 5 gallons well, 2 1/2 gallons, at the house. I bought the 5 gal. bucket from NAPA when I had my Yama's when I had a crack in my foot and changed the footoil every 3 trips. LOL...........

Cheaper then buying a foot that cost more then the WHOLE MOTOR WAS WORTH. LOL.....

11-08-2007, 10:18 AM	#1
freespool50 Senior Member Grouper Join Date: Sep 2007 Location: breezer Posts: 627	lower unit lube <P dir=ltr style="MARGIN-RIGHT: 0px">i have 1978 70 evinrudes. can i use my 80-90 gl5 gear oil for car diffs? or do i trot on down and get some specific marine gear lube ? thanks guys __________________ fred angeles pensacola imports mercedes benz repair specialist 725 W Garden St (corner of A and Garden) 791-6607 fred@pensacolaimports.com

11-08-2007, 10:21 AM	#2
Telum Pisces Senior Member Blue Marlin Join Date: Sep 2007 Posts: 4,737	RE: lower unit lube Nope, you need the marine application lower unit oil. It has additives to help keep lubrication in case of water intrusion. At least that was what I was told when I stayed at the Holiday Inn Express.oke

11-08-2007, 10:31 AM	#3
freespool50 Senior Member Grouper Join Date: Sep 2007 Location: breezer Posts: 627	RE: lower unit lube yes i read about the additives. its just that i know sometimes other products will work and i believe in the conspiracy of packaging the same product in different packaging, calling it something different and charging more. mobil was caught doing this recently with some of their diesel oil products. __________________ fred angeles pensacola imports mercedes benz repair specialist 725 W Garden St (corner of A and Garden) 791-6607 fred@pensacolaimports.com

11-08-2007, 10:34 AM	#4
Telum Pisces Senior Member Blue Marlin Join Date: Sep 2007 Posts: 4,737	RE: lower unit lube I understand your concern, but I have been told this by very reliable people that have been in the business a LONG time. Standard gear lube will probably work just fine as long as there is never any water intrusion. But the problem arrises when water gets in. Unless you change your foot oil everytime you get back in, you usually don't know that some water got into the oil until it's too late. I preferably would like a little cushion of time where the oil will still somewhat provide lubrication with a small amount of water in the oil.

11-08-2007, 01:33 PM	#5
freespool50 Senior Member Grouper Join Date: Sep 2007 Location: breezer Posts: 627	RE: lower unit lube went and got some lube, well i didnt actually go. i picked up the phone and called napa and they brought me 5 10oz tubes. shoulda dont that in the first place. thanks __________________ fred angeles pensacola imports mercedes benz repair specialist 725 W Garden St (corner of A and Garden) 791-6607 fred@pensacolaimports.com

11-08-2007, 05:18 PM	#6
coueyone Member Ruby Red Lip Join Date: Oct 2007 Posts: 83	RE: lower unit lube NAPA the only way to fly

11-09-2007, 08:23 AM	#7
DOUBLE "D" & LV Senior Member Grouper Join Date: Oct 2007 Location: pensacola Posts: 863	RE: lower unit lube i can't rememberwhat yearsthey had them, but is yours an electric shift unit? if so you have to use a special lube. i believe it is type c for electric shift. if not, disregard.

11-09-2007, 12:08 PM	#8
johnsonbeachbum Senior Member Sailfish Join Date: Oct 2007 Posts: 1,683	RE: lower unit lube If there is a marine grade of GL-5 gear lube, then why is there no API or other specification numbers to confirm it is for marine use? Seems if there was a difference the manufacturers would label such other than merely adding the word "marine" to the label.

11-18-2007, 09:54 AM	#9
The Mantenance Shoppe Junior Member Cigar Minnow Join Date: Oct 2007 Posts: 12	RE: lower unit lube Use royal purple 75w90 full synthetic. 12.99 a quart you can't go wrong. www.royalpurple.com It is the only oil brand we stock and use. __________________ *The Maintenance Shoppe LLC* Full service Boat, Trailer, and PWC Repair 4048 Creighton Rd Pensacola, FL. 32504 850-221-6789 www.themaintenanceshoppe.com

11-18-2007, 08:34 PM	#10
Deeplines Ron Paul 2012 White Marlin Join Date: Sep 2007 Location: Lillian Woods Posts: 2,839	RE: lower unit lube Hey FRED, Have you used it yet? If not take it back. I have 5 gallons well, 2 1/2 gallons, at the house. I bought the 5 gal. bucket from NAPA when I had my Yama's when I had a crack in my foot and changed the footoil every 3 trips. LOL........... Cheaper then buying a foot that cost more then the WHOLE MOTOR WAS WORTH. LOL.....

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