GermanCarSpecialists

i am giving a shot to Lubro Moly 10w60 on my car. As a matter of fact, today i will do an oil change after closing. For customers, I use 0w40 strictly for obvious reasons, unless they bring their own oil.

mdkelly1

I also get mine at "The Lubricant Store."

http://thelubricantstore.com/engine-...w50-6x1qt.html

Kevin

Running a 60W oil increases the chance of opening the bypass springs on a cool morning. I have seen this happen on this engine, the oil pressure gauge bounces at 5bar plus.. That means that on start up your oil is running on bypass. No filtration when the engine has the potential to have the most wear. I can see running the Castrol 10W60 in the desert AND if the ambient temps NEVER come down below 85F..

neanicu

^^^ Or unless you drive an E46 M3

Chrono

Anyone ever used Texas Tea oil? It's a niche right now. It's 100% synthetic. Amazon has it.

okiedude

Thanks, scoured NAPA online two days ago and could not find it. There search engine is not the best. According to my local NAPA store the 98HF24 number has been superseded by 106035. I just checked and that number does work at NAPA online. Best of all, my local store has 156 qts. of the stuff-
Thank you, Kevin!

GermanCarSpecialists

So you are assuming the 60 oil is so thick that pump will not generate enough pressure to flow it through the oil filter housing?

Plus, yep, I am in south TX, now it averages 50-60s and soon will run 100+ 6-7 months in a row.

sanyata

Isn't the 10w60 at 10w on a cold start?

Kevin

As the engine warms, the thickened oil overpressures the bypass spring pressure. The relief that occurs bypasses the oil filter. This engine is a dry sump, the oil is picked up/scavenged and placed in the oil tank, and then returned to be pressurized/pump thru the bearings and engine components.

Have you seen how the oil pressure behaves on cold start/engine warm up vs when the engine is hot.

When one looks in the manual we are given the 0W40 and 5W50. 10W60 is for extreme high heat geographic areas.. Like I said, 85 is the minimum. If you track the car and trailer it you could run it in the heat of the day. The vario cam modules, hydraulic solenoids, and inlet tappets DON'T do well with a 60 weight.

Chrono

Yes.

GermanCarSpecialists

I will not argue with you on this Kevin. You are correct. However, like I said earlier, this is my car, and I am giving it a shot. I plan to put a solid 10k miles on the car with this oil. So far since yesterday I am not having any abnormal pressure fluctuations at cold start. But again, this is day 1, and this morning temperatures showed 46 when I cranked it up.

Engine noise at idle is almost 50% off. Last night on the way back, car felt smoother.

I will report back.

PS: If you are in a Northern State, where your car is subject to extreme winter conditions, I would not recommend this oil.

kosmo

yup, Napa has them

"02996ttx50

if my rams ever fail again i will have them repaired asap as i like things to work as they were designed, and have always taken great pleasure in viewing them being deployed at speed and being retracted in my rear view while slowing. there is something reassuring about seeing that, though i also never believed that i am somehow more "stable" for them working or not lol

but 150+? sure.

Daytonaman

For years ran Motul 300v 20w60 and had no issues in a Fl climate. However the engine rattle was present after warmup. After all the discussion on Rotella t6, it was time to try the comparison. So far the T6 runs much quieter so far. Imagine that; T6 quieter than 20w60.
So I tried it in my Jeep and now I get lifter noise on cold startup, so I'll switch back to Castrol on the Jeep.

JohnAnthony

Absolutely NOT

the first numbers of the oil is a relative number to help you gauge how much the oil thickens when it cools

you always choose the weight first
then you choose which XXW- you need for your purposes

do you live in sub zero temps and your oil sump is also at sub zero temps every cold start?
or
do you live in summer climates year round and you sump temps are 20-30C every cold start?


e.g.
0w40 thickens much less upon cooling compared to 10w40
they both have the same viscosity at 100C but at 0C the 0w40 will be relatively much thinner than the 10w40

but 10W40 & 10W60 ARE NOT at the same viscosity upon cooling
if they're not the same viscosity at 100C why would they be the same viscosity at 0C?

anything labelled 40 weight is 40 weight from -273C up to its Flashpoint
anything labelled 60 weight is 60 weight from -273C up to its Flashpoint

so
at 100C
0W40 = ~14cst
10w40 = ~14cst
10w60 = ~23cst

at 40C
0w40 = ~ 79cst
10w40 = ~ 95cst
10w60 = ~ 160cst