LE-607 replacement? LE-1605 is an SAE 110 oil?!?
03-02-2009, 05:03 AM
#11
Originally Posted by chino101,Mar 2 2009, 07:08 AM
There are two viscosity standards, SAE and ISO.
I looked at this closely before I put it in my diff, and found that the ISO viscosity specification between Le-607 and LE 1605 is essentially the same; ISO 220.
I looked at this closely before I put it in my diff, and found that the ISO viscosity specification between Le-607 and LE 1605 is essentially the same; ISO 220.
I
purple gear oil!
03-02-2009, 08:51 AM
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I was running 607 and the new 1605 but then I switched to Mobile 1 because it get too cold here to run either LE product. I liked the LE because it made my diff quieter. (no I don't have aftermarket gears)
03-02-2009, 09:28 AM
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Originally Posted by INDYMAC,Mar 2 2009, 04:55 AM
It says right on the Le1605 box (case of 24 qts) that it is the LE607 replacement.
LE also states that LE1605 is fully compatible with 607. No flush is required.
LE607 was formulated before SAE J306 specs circa 2004 were installed for gear oil labeling (SAE90 is now split between SAE90 and SAE110). Before J306, the SAE90 gear oils always fell into the higher viscosity range of SAE90, while the multi-viscosity 90's would fall into the very low end of SAE90 if at all. Honda (and Toyota) recognized this discrepancy and recommended that their customers use the straight SAE90 in order to insure the proper protection at high temps. They still recommend SAE90, because of it's inherent viscosity stability. They don't have to use as much viscosity improvers that tend to break down in use.
Here is a link that explains the J306 changes (you can view both):
http://www.lubrizol.com/products/automotiv...ar-oil/J306.asp
Hereis a test study by AMSOIL that actually explains why there are some problems with multi-vis gear oils staying in grade:
http://www.amsoil.com/products/gearl...hitePaper.aspx
LE1604 would be an excellent choice too, but it is not available in quart bottles. A 5 gallon pail is the starting point. LE1605 is your best choice though.
LE also states that LE1605 is fully compatible with 607. No flush is required.
LE607 was formulated before SAE J306 specs circa 2004 were installed for gear oil labeling (SAE90 is now split between SAE90 and SAE110). Before J306, the SAE90 gear oils always fell into the higher viscosity range of SAE90, while the multi-viscosity 90's would fall into the very low end of SAE90 if at all. Honda (and Toyota) recognized this discrepancy and recommended that their customers use the straight SAE90 in order to insure the proper protection at high temps. They still recommend SAE90, because of it's inherent viscosity stability. They don't have to use as much viscosity improvers that tend to break down in use.
Here is a link that explains the J306 changes (you can view both):
http://www.lubrizol.com/products/automotiv...ar-oil/J306.asp
Hereis a test study by AMSOIL that actually explains why there are some problems with multi-vis gear oils staying in grade:
http://www.amsoil.com/products/gearl...hitePaper.aspx
LE1604 would be an excellent choice too, but it is not available in quart bottles. A 5 gallon pail is the starting point. LE1605 is your best choice though.
Thanks for the clarification!
I am still curious how Honda has handled the spec change in what they recommend for the newer S2000's........SAE 90? .....SAE 110? .....or either one? Anyone with a newer S2000 care to chime in?
Regards,
Bob
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