Anyone use Rotella T diesel oil in their gasoline e30?

[Vivek]

You know im just going to make this short. I dont actually own a m42 or frequent the locals forum to hear what m42 people like but heres the long and short of it

bmw designed the m42 for fully synthetic oil. bmw recomends LL-01 or LL-98 approved oil.

In general that is only mobil 1 and castrol euro oil. Depending on how you drive it it is the type of motor that best for synthetic. I dont actually know if rotella synthetic even makes it im not that much of an oil nerd.

the best oil for the m42 is mobil 1 o 40. That is basically bmw oil..... comes from the factory in bmws. or bmw synthetic oil...

if you have a dino oil m42 I dont guarantee it wont release sludge that causes a leak. I cant tell from over a distance that specific a situation. I doubt it would though. and if I put my m42 in its high rpms a lot i would rather have synthetic and leaks personally.


the m20 might be the last motor where they didnt recomend fully synthetic oil... I dont have all the data in front of me. the m30 maybe.

Did you mean 10w40? I'll see what I can find/what's on sale, etc. Kragen might be a good choice in that case (and walmart is super far). I don't push it hard consistently, but I do take it to 6k occasionally, I've yet to hit the rev limiter.

[M3Philipp]

I am running 5w40 in my 318is M42B18, full synth engineoil.
Maybe go for 0w40 for the next oilswaps.

15w40 or 20w40 it not even close as liquid when the oil is cold, but as liquid once the engine is warm.

Meaning when your engine is not yet on temperature, it will be the worse oil.

But people all know it best on their own, it does not make sense to discuss this out in the internet, as everyone will recommend a different kind of oil.

[stamar]

no i mean 0 w 40 but 10 40 is fine

oil nerds will tell you that 0 w 40 mobil 1 is entirely different than all of the other mobil 1 its euro synthetic oil.

I personally use oreilly synthetic and napa synthetic what they are is major manufacturer oil without the full additive blend.

One is canadian brand motul, which is sold in the us as mobil 1 one is valvoline synthetic... which at full price isnt worth it but at 3.50 its nice.

only when they are on sale like right now.

I change the oil on 4 cars so I get whats on sale, I get the cheapest synthetic and dino oil.

only 1 requires synthetic its a 2005 ford f150. It recomends synthetic blend actualy.

[Emre]

mobil ones m20 test used 14k oil changes to reach 1 million miles. 15 50 w btw.

One thing I've learned about oil is that you can't go by the labels anymore. Companies change their formulations (even including their base stocks) without any notice.

The Mobil 1 they ran in that 25-year-old million mile E30 commercial has almost nothing to do with the Mobil 1 you buy at Walmart for $30 a gallon. It used to have a PAO (Group IV) base stock; now it's hydrocracked petroleum (Group III). It used to have loads of ZDDP; now most grades have little/no ZDDP, while other grades still have reasonable amounts. To complicate things, you can still find the original Mobil 1 formula in some European markets. It's a mess trying to figure out what you're getting.

It's the same with Shell Rotella T6, Mobil Delvac 1300 Super, and Chevron Delo 400. Guys like us started running diesel oils like these because passenger car oils were forced to drop their ZDDP levels for emissions purposes, but diesels were exempt. But as of 2 years ago, diesel oils also have to meet modern "low emissions" standards and the formulas have changed. Based on everything I've read, Rotella and Delo no longer have the high levels of ZDDP they used to have, but Delvac is still good with 1300 ppm. Who knows when Delvac will also change?

Bottom line: brand names, marketing hpe, and even the word "synthetic" are meaningless. You need to do your research.

Based on my research, I've become convinced that Brad Penn PG-1 in 20W-50 is the best oil for hard-driven M10, M20, and M30 engines. For the S14 (and the similar M102 Cosworth engine in my Mercedes), I think Amsoil Dominator RD50 in 15W-50 may be better just because the base stock is of a higher quality.

[xwill112x]

Which engines?

non vanos m50, m42, m52, 4.0L jeep, 351 in my f150

[stamar]

that is true mobil 1 had this zddp then and was fully synthetic.

i had noticed that mobil 1 0-40 is the magic grade you are talking about.

a quick google search of which oils are pa0 comes back with mobil 1 except 10 30 and 5 30 ( which still includes 15 50) and castrol edge ( or german castrol)

all the other ones are type 3 refined synthetic. Which for me is still great and lasts noticeably longer. but dont ever pay 6$ for it. Theres a reason why its for sale for 4$ a lot.

I like this valvoline synpower for 3.50 a quart or oreilly brand for 3.50 a quart. the name brand type 3. Consider it synthetic blend but as opposed to 30% more like 70% thats all it is. thats perfect for all of my cars.

some grades of mobil 1 are actually the canadian brand motul(edit actually french but made in canada). They make very cheap synthetic oil. It is coming up as oreilly and wallmart brand synthetic.

motul is also motorcraft synthetic.


Since Im in a oil nerd thread I just wanted to add

I just changed my oil with valvoline synthetic, 15 50, and redline mt 90 and the redline mt90 smells like tar and is several shades darker.
redline mt 90 is very expensive its 14$ a quart if you find it cheap. But Id swear that if anything it has to be the type 3 cracked dino oil synthetic because it smells like oil.
whereas valvoline is getting close to being clear...

[Emre]

some grades of mobil 1 are actually the canadian brand motul. They make very cheap synthetic oil. It is coming up as oreilly and wallmart brand synthetic.

You're thinking of Motomaster, which is the house brand for the Canadian Tire chain of stores (similar to Sears). And I'm pretty sure the connection goes the other way: it's more likely that Exxon/Mobil would produce a generic Gr.III oil that's packaged and sold as "Motomaster Formula 1 High-Mileage" in Canadian Tire stores rather than the other way around. BTW, I used to live in Canada, and I'm pretty familiar with Canadian Tire stores. I don't believe they have their own refineries, though I may be wrong.

Motul is not a Canadian brand and it is not cheap.

Motul is a French company and they are known for their 300V Competition oil, which was the very first synthetic oil to use a dual-ester (Gr.V) base stock. Motul is absolutely top-shelf stuff. It's used exclusively by a huge number of top Moto GP, FIA GT, and WRC race teams. It's safe to say that the vast majority of cars in the major European 24-hrs endurance racing series (e.g., Le Mans, Nurburgring, Spa) and most Paris-Dakar teams run Motul 300V in the 20W-60 "Le Mans" formulation.

[stamar]

no im positive motul is sold as mobil one. its in the oil guy thing.

motul also makes mobil one gear oil.

It is a marketing partnership. The opposite is also probably true, motul sells mobil 1 also.

It is widely known in canada where motul is made and sold and a household brand.

vancouver is where there big operation is.

motul is french, but it is a big brand in canada and made there.

motul synthetic is significantly cheaper than mobil 1. Im sure they have different grades.
looking at wikipedia, motul invented whats called synthetic blend oil.

[Emre]

no im positive motul is sold as mobil one. its in the oil guy thing.

I stand corrected.

motul synthetic is significantly cheaper than mobil 1. Im sure they have different grades.

I find that hard to believe. 300V is really excellent and holds up to track use like no other. I've been very involved in motorsports for the last 10 years or so. I have friends with factory rides in European rally championships, etc. Almost everyone in European endurance racing runs 300V Le Mans. You hardly see anything else...and no one runs Mobil 1. So I find it hard to believe that Motul makes crap.

looking at wikipedia, motul invented whats called synthetic blend oil.

I know for a fact that they were the first to bring a Gr.V oil to the market.

[stamar]

they also have more expensive oil. Im not sure why i need to look into motul.\
their most expensive stuff is not the same stuff....

The main thing is, its not sold here at least in retail. Here on the west coast, it is sold as oreilly brand and walmart brand ( spectrum), both of which are mobil brands.

I learned about motul when discovering oreilly brand synthetic. There was actually an introductory sale where it was 2$ a quart. and I wish I bought it all.

the main refinery of motul is in vancouver bc, and stores in seattle do drive over and get it.

now on the third hand, motul also makes mobil 1. But theres nothing that shows that oreilly brand is the same as mobil one. it just has the same maker. mobil 1 still has a exxon mobil additive and oreilly brand has a motul additive.

it is my opinion this motul/oreilly oil is the best thing out there but run it by the bobistheoilguys. It is a type 3 oil and it definitely lasts 10k miles.
I honestly have no idea about zddp

I think motul is sort of sold like amsoil in canada actually.


edit oreilly brand is sourced from mobil in some markets, and warren in some markets. the stuff made by motul is the stuff from omni brands. the other stuff is from warren ozark automotive. just to make this as confusing as possible.... oreilly and wallmart aparently share their oil and buy it from eachother. could be from anywhere.

[Emre]

Just goes to show that you can't trust the labels and marketing. If you want to know what goes into your crankcase, you have to sit down and do some research.

As for me, I'll stick with Brad Penn PG-1 20W-50 (for my M20-powered 318is track/weekend toy) and Amsoil Dominator RD50 15W-50 (for my 190E Cosworth race car). At least I know what I'm getting for my money.

[Bimmerman325i]

Oil: SRS BSNS.

[TobyB]

But people all know it best on their own, it does not make sense to discuss this out in the internet, as everyone will recommend a different kind of oil.

Of course, and science be damned.

Last I looked at Mobil's literature, the 15-50 still had 1200 ppm ZDDP.
And the levels varied a LOT depending on weight.
Which made sense, since 0w20 is for modern Hondas, and 20-50 is NOT recommended
for a motor newer than the M20.

If it says 'LE' or "Low Emissions" Delo, Rotella, Delwhatevervac probably has below 800ppm. Often 600 ppm. Sometimes you can find factory numbers...

If there's a 'starburst' on it, you're equally low in ZDDP.

Low ZDDP oil probably won't kill a well- broken in M20 with standard valve springs.

It does a number on a rebuilt M10 with an uprated cam and springs.

t

[Vivek]

Well, I didn't get anything today. Rotella at kragen didn't have the right weight (they had like 10-30 i think), and the kragen full synthetic wasn't on sale and I didn't wanna pay $5.50 a quart. Oh well...next weekend.\

Edit: what's the difference between full synthetic and synthetic blend? Is the blend a decent compromise, or should you just get dino or full synthetic?

[Vivek]

non vanos m50, m42, m52, 4.0L jeep, 351 in my f150

Do you use synthetic or dino?