Running diesel oil

Whizbang · 04-02-2009, 01:28 AM

i would curious as to what the exact differences are and the extent of the significance. As far as a rotary engine goes, i see many similarities expect for perhaps RPM ranges.

Black91n/a · 04-03-2009, 12:02 AM

IIRC (I looked it up today at work), there's more anti-wear by about 80% (lower speeds, higher loads, so its needed more), but I don't remember the rest exactly.

Basically by running diesel oil, you're saying you know more about lubrication than the lubrication experts that set the standards, and that's just not the case. If you're worried about it, just run a good quality synthetic. Amsoil is apparently about the best you can get.

RETed · 04-03-2009, 07:21 AM

Long time Shell Rotella-T user here...
Got no problems, and tear downs don't reveal any problems...
I get a little lazy at times and lengthen service intervals to 5,000 miles.
Yeah, I know...I know.
The car doesn't get run hard nowadays.

1987 Turbo II
13BT
Haltech E8
Last put down 240hp at the wheels on a DynaPack dyno
Daily driver
10 - 12psi of boost max
Premix'd with Valvoline Multi-use premix in the blue bottle

-Ted

Black91n/a · 04-03-2009, 06:14 PM

I had another look, they've typically got more anti-wear and more anti-corrosion, dispersant and detergent additives. That might sound like a good thing, but really, if you don't need it, it's better to not have an additive, since you get less actual oil in your oil.

vex · 04-03-2009, 06:18 PM

Quote:

Originally Posted by Black91n/a

IIRC (I looked it up today at work), there's more anti-wear by about 80% (lower speeds, higher loads, so its needed more), but I don't remember the rest exactly.

Basically by running diesel oil, you're saying you know more about lubrication than the lubrication experts that set the standards, and that's just not the case. If you're worried about it, just run a good quality synthetic. Amsoil is apparently about the best you can get.

That doesn't take into account CJ4 which is for hi-rev/hi-load diesel engines.

04-02-2009, 01:28 AM	#1
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp Posts: 3,190 Rep Power: 21	i would curious as to what the exact differences are and the extent of the significance. As far as a rotary engine goes, i see many similarities expect for perhaps RPM ranges. __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook

04-03-2009, 12:02 AM	#2
Black91n/a Rotary Fan in Training Join Date: Mar 2009 Posts: 39 Rep Power: 0	IIRC (I looked it up today at work), there's more anti-wear by about 80% (lower speeds, higher loads, so its needed more), but I don't remember the rest exactly. Basically by running diesel oil, you're saying you know more about lubrication than the lubrication experts that set the standards, and that's just not the case. If you're worried about it, just run a good quality synthetic. Amsoil is apparently about the best you can get.

04-03-2009, 06:14 PM	#4
Black91n/a Rotary Fan in Training Join Date: Mar 2009 Posts: 39 Rep Power: 0	I had another look, they've typically got more anti-wear and more anti-corrosion, dispersant and detergent additives. That might sound like a good thing, but really, if you don't need it, it's better to not have an additive, since you get less actual oil in your oil.