Recent content by ghortat

I change mine according to the OEM manual recommended intervals.

You will be fine if you keep it up to 3 years. If you want, you can change it earlier since fresh oil will always do good. Maybe you can keep the differential oil for 2 years and then replace.

Originally Posted By: zeng I am not sure of anybody here claiming a GL4 oil is NOT the right choice for applications that call for GL4. Having said this, it doesn't mean an appropriate oil like Eneos in question is not suitable and thus cannot be used in applications that calls for GL4...

Originally Posted By: zeng Most modern GL5 today meets ASTM D130-12 Copper Strip Test 1a or 1b , among other things with the inclusion of metal deactivators in its additive system. http://www.ptplab.net/upfile/201402/19/154823776.pdf It's an indication of copper/brass friendliness , and I...

Originally Posted By: MolaKule The ENEOS mentioned is primarily a differential oil from their website: Quote: ...ENEOS Gear Oil is recommended for use in bevel, spiral bevel and hypoid gear type differentials... Dedicated MTF's such as Redline MT-90 and Amsoil MTG have slightly lower...

Thank you guys! Im in favor of MT-90 too. Anyone about ENEOS? What i would like to know is why this GL-5 can't be used (besides the obvious keep off answer manufacturer knows best)? Will it cause extreme wear to the synchronize? But why is the viscosity almost the same?

I have this SUV and this is my first change for trans and diff. I read in manual that for transmission lube i need GL-4 75w90 so i have a couple of candidates below. 1) Redline MT-90 2) Ford Full Synthetic Manual Transmission Fluid XT-M5-QS However, i accidentally came across ENEOS configurator...