Is this stuff any good for things like flat tappet 302 motors??

It seems like an odd weight to me, plus it seems like nobody ever mentions it. Why is that?

 

5w40 is usually used in diesel engines, with guys who normally use a 15w40 oil. Speaking of Shell Rotella T, their 5w40 oil is an excellent oil for diesel owners looking for a better winter oil in frigid temps, plus a slight increase in diesel fuel mileage, as compared to a regular 15w40 oil.

Instead of a 5w40, why not use the Shell Rotella t 10w30 oil? It has the diesel additives you're looking for, plus I feel it's a better, overall oil, if you're using it in a gasoline engine. Just my opinion.

Wal-Mart has this oil (RotellaT 10w30) both in quart containers, and gallon jugs.

 

5W-40 is a very popular synthetic grade in Europe. As Ed mentioned, it is also used as a diesel engine grade here. Lately, this oil has become popular with motorcycle riders because of the low price compared with special motorcycle oils. The same ZDDP that protects flat-tappet cams also protects transmission gears. Not being "Engergy Conserving" means that wet clutches wont slip.

Ed,

I cant find 10W-30 "fleet" oils anywhere in So. Cal., Chinamart, AZ, PB, Kragen, etc. For summer, straight 30 Delo and Rotella T are still commonly available. The straight 30 Delo 400 has a VI almost of a 10W-30, much better than most straight 30s.

Jim

 

Not around here (northern Oregon).

They have the 5w40 syn and the 15w40 dino.

And isn't deisel oil changing...meaning less zddp due to new deisel trucks having a cat?

 

JIM - ECO, what you might want to do is ask the manager at your Wal-Mart to start stocking the Shell Rotella T 10w30. It is obviously on Wal-Marts order inventory, so it can be ordered. It's not like it's AMSOIL, Royal Purple or Red Line oils, where they've never been ordered in the first place, by Wal-Mart.

What is probably occurring is your local stores are simply re-ordering what they've carried in the past. They might not even know this oil is available. Even here, in the Sacramento, CA area, it's only been on the shelf, maybe two months now, but I have seen it, 10w30 Shell Rotella-T 10w30 oil, with diesel oil certification on the quarts or 5 gallon jugs.
They are also stocking a lot of Chevron Supreme oil, Delo 400 in 4 quart gallon jugs (15w40) and TropArtic Oils, which I like.

I have not been to my local Kragen's Auto parts, in 4-5 months, I'll have to stop in ASAP and see what is up there.

Ed

 

I actually use the synthetic Rotella 5w40 in everything I have except my 6.9L diesel, in it I only use Rotella 15w40 because it has to be changed more often and costs quite a bit less. I have a 3.4L chevy and a 2.0L saab engine neither use any oil between changes and they both get the 5w40. I would run the 5w40 in the 6.9L too, but it seems kind of a waste since it gets dumped regularly.

 

The new CI-4, such as Delo 400 LE still have a good dose of ZDDP compared to PCMO's. A sigificant difference is in the lower TBN, resulting in lower sulfated ash. Cats are sensitive to sulfur, as well as lead and phosphorus. Due to the introduction of Ultra Low Sulfur diesel fuel, the TBN does not have to be as high as in the past. This actually makes fleet oils even better for gasoline engines than before.

Jim

 

I use the 5-40 synthetic.

I'm under the impression that in '07 the diesel oils lose the zddp as well...need to figure this out for sure as I'll stock up even more if it hasn't lost it yet!!!

 

do not use 10-30 oil in a 6.0 diesel somthing to do with injectors

 

According to the owners manual for my 2004 6.0L, 10W-30 oil is preferred below 30 degrees and can be used up to 90 degrees.

 

I sell a ton of Valvoline 5w40 Premium Blue Extreme at work. Its Valvoline's Full Synthetic diesel oil. Cummins actually partnered with Valvoline's R&D team to develop it. All my customers love it. they must, hell for an oil change on a 6.0 PowerStroke that holds 15 qts is 140 dollars...

 

really, just how do you know that with 2 whole posts?

 

Here's something, I spoke to Shell Tech line prior to doing this. On their recommendation the 0W-40 full syn. is the only oil that meets the requirements of the Triton gassers.
I wanted something I could run in them and our 7.3, Passat t-d and tractors.
It has been 3 years now and no issues. I don't know why the 5w-40 doesn't spec out for the tritons..

cheers

 

check with a ford tech your injectors run off yuor engine oil 10-30 will break down and could damage your engine so check with a ford tech thank you for your reply

 

LMAO, ya ill do that. just how does the 10w-30 damage the injector if you dont mind, and because it breaks down aint gonna cut it...


seems to me if 10W-30 was damaging injectors ford would have a bullitten. seems to me we have some of the most knowledgable 6.0 techs in the world right here and i never heard them mention 10w-30 would damage the injectors if you follow the manual.