wrong oil = blown motor

[drooseph]

So...i took pretty good care of my car when it ran but i had switched mobil1 delvac 15w-40. When i switched my oil pressure was always goodm lifter tick went away and my exhaust had this intoxicating smell to it, on the wasy back from a junkyard scouting trip the motor took a dump. started whining, i shut it off, pull over, check timing, sranks up but knocks super bad. the only variable I changed was the oil. could this be why i spun a bearing. i was allmost all stock with just intake and exhaust and it blew at 55mph and under 3k no boost.

 

[Tyeler18]

i laughed until i googled it-- all the links i read pretty much said its fine.... but itd still never try it

desiel oil in gas car - Google Search


^^spelled incorrectly-- thanx auto correct :-/

First answer in the first posted thread sums it up. It's not harmful.

Look, all I'm saying is, you buy a dsm, you want that dsm to run right, you pony up the money for the oil you're SUPPOSED to use. If you don't give a $hit about how it runs, use diesel oil. Yeah, it'll probably work just fine, but it doesn't change the fact that you're doing it wrong, and tempting fate like a champ.

I see it like this, I bought my car, with my money, (not my parents, been paying my own way since I was 17) I'm not willing to take any chances by putting anything that's even remotely questionable in my motor.

Again, you need to do some research. It's not harmful and actually is beneficial to turboed cars.

Also, no need to bring in your financial situation, it doesn't make you any cooler than everyone else who has bought their own car with their own money (myself included), so I see no point in your comment.

 

[b00stedAWD]

Lot of supras run diesel oil such as Shell Rotella T6 when running E85.

 

[DSMTyson]

Stop spouting off with bad information.

My car went down the quarter in the 12 second range on Rotella. Even a 11.95.

So suck it

Hahaha^^^^.

You guys that are saying diesel oil will blow your motor are RETARDED(see the big word ) .

Sounds like you just needed a rebuild, and it decided to die after you changed the oil. Just coinsedence.

 

[akira235]

Stop spouting off with bad information.

My car went down the quarter in the 12 second range on Rotella. Even a 11.95.

So suck it

Ah, now that you have told me to suck it, I will surely be silenced in awe of your awesome intelligence and wit. See my other posts in this thread please, if you guys wanna run diesel oil because its cheaper, fine. If it works for you, fine. I've seen people take honda motors, remove the radiator and loop the hoses, then drive the car for 80k + miles with no "ill effects" did it work? Yes. Was it a good idea? Probably not.

 

[dsm-onster]

It is NOT diesel oil. It is high duty oil designed for extensive bouts of heat. . . That our turbochargers put the oil through in simple spirited driving to the beach. It is specifically NOT calld diesel oil. It is a mixed fleet oil and is RECOMMENDED by exxon-mobil for high performance gasoline motors. And a motor that requires premium fuel from the factory is high performance.

 

[akira235]

Hahaha^^^^.

You guys that are saying diesel oil will blow your motor are RETARDED(see the big word ) .

Sounds like you just needed a rebuild, and it decided to die after you changed the oil. Just coinsedence.

Ah yes, telling people to run factory specified lubricant in the worlds most finicky engine is clearly a sign of mental retardation.

In point of fact, I never said it WILL blow your engine, I just said it was a bad idea. Because whether it works or not, it's a bad idea. You wanna be cheap with your car, drive a honda.

 

[drooseph]

Ah, now that you have told me to suck it, I will surely be silenced in awe of your awesome intelligence and wit. See my other posts in this thread please, if you guys wanna run diesel oil because its cheaper, fine. If it works for you, fine. I've seen people take honda motors, remove the radiator and loop the hoses, then drive the car for 80k + miles with no "ill effects" did it work? Yes. Was it a good idea? Probably not.

So, with nothing positive or insightful to say you post up a bunch of inaccuracies?

 

[LiquidX]

Then please, explain to the masses and Forced Performance why diesel oils are bad. Not including the damage it causes to a catalytic converter.

Let's hear it.

 

[drooseph]

You wanna be cheap with your car, drive a honda.

Delvac is actually expensive i just happened to get it for free at work. I drive a sentra, which is a NISSAN, daily but you would have had to read my profile to know that.

 

[dsm-onster]

Yep. It is actually quite expensive vs. typical rotella t.

Ah yes, telling people to run factory specified lubricant in the worlds most finicky engine is clearly a sign of mental retardation.

In point of fact, I never said it WILL blow your engine, I just said it was a bad idea. Because whether it works or not, it's a bad idea. You wanna be cheap with your car, drive a honda.

No the 4g63 is actually one of the most durable. Considering the MILLIONS of sirius blocks out in the world, the amount of discussions concerning bearing failure that come across this high traffic site are far and few between.

It is NOT a bad idea to the chemical engineers at Exxon-Mobil. . . Let it die, buddy.

 

[Tyeler18]

Who runs catalytics converters in dsms these days? I thought those were back in the days of running factory oils?

You're probably the guy that buys the walmart ST tech oil and a Fram oil filter thinking you've got the best oil in the world.

Seriously, please explain how running "diesel" oil is harmful? Prove 1/4 of the forum that we're all "doing it wrong."

 

[akira235]

Why is it that the dsm community sucks the dick right off of every oem part, then when it comes to oil the general consensus is "fLJck it, lets use diesel oil"?

Whatever guys.

If you had a Ferrari, would you use Royal Purple? or would you use Ferrari oil? Personally, I would use Ferrari oil, because if I pony up the money for a Ferrari, I'll damn sure pony up the money to make sure everything is factory spec.

I have a dsm, I paid for the dsm, therefor, I'm not putting a god damn thing in the motor that is even remotely out of line with what is specifically recommended by the people who designed it.

 

[3kgt2nv]

I have a dsm, I paid for the dsm, therefor, I'm not putting a god damn thing in the motor that is even remotely out of line with what is specifically recommended by the people who designed it.

would you use synthetic oil? Because thats not recommended according to the manual.

 

[akira235]

According to which manual? The haynes manual? I haven't owned one since I had to do corrections to the one for a 1987 camry when I was 12. Haynes manuals are the most worthless pieces of automotive literature ever written.

 

[dsm-onster]

You cannot run any upgrade turbo, any more than stock injectors and nothing to alter the timing and fuel curves then. . . Please stop. You have already admitted to having no experience with this oil or any other oil also used in a diesel motor. So you have nothing to contribute.

 

[2slow4utsi]

So, just for clarification, in order to save around $40 in oil costs, you decided to pour diesel oil into your gas burning engine, without ever looking online to see that diesel oil contains additives that are harmful to gas burning cars?

This is, without a doubt, the most absurd thing I have ever read on this forum.

I'm not sure if it was this forum or another forum but someone poured sand into their intake, ran the engine and attempted to clean out the intake.

 

[MichaelSuch]

I've ran 15W-40 Rotella T in all my DSMs since I've owned it. No ill effects. Even in the winter. The oil didn't kill your engine, it was already on its way out.

 

[Calan]

I have a dsm, I paid for the dsm, therefor, I'm not putting a god damn thing in the motor that is even remotely out of line with what is specifically recommended by the people who designed it.

That would be an awesome theory if I ran my DSM at anything near the performance levels that it was originally designed for. But since my motor is built to completely different tolerances than when first designed, and since I routinely put my motor through considerably more stresses than the factory intended, I think I'll stick with what has been proven and recommended by aftermarket and performance specialists.

 

[drooseph]

I have a dsm, I paid for the dsm, therefor, I'm not putting a god damn thing in the motor that is even remotely out of line with what is specifically recommended by the people who designed it.

The GM maf you run wasn't designed for your car. I quess GM and Mitsu are one in the same in your eyes.

When i worked at a Valvoline instant oil change they recommend 20w-40 all climate for my car.

 

[dsm-onster]

Not only do I run rotella T in my turbo car with stock everything except fuel pump and intercooler (even stock boost). But I also ran it for th last 150K in my wife's camry (5sfe) . . . Some one bought the motor for their mr2 and it's still going strong though it had 285K on the motor total with no rebuild after the "diesel oil", no rebuild at all.

It's great for stock power; even low power.

 

[akira235]

That would be an awesome theory if I ran my DSM at anything near the performance levels that it was originally designed for. But since my motor is built to completely different tolerances than when first designed, and since I routinely put my motor through considerably more stresses than the factory intended, I think I'll stick with what has been proven and recommended by aftermarket and performance specialists.

Same here. Which would be the reason for M1 fs and RP. I wasn't trying to start a war over this. It just seems completely ridiculous to me that you guys are okay with using something that says "diesel" on it.

 

[JusMX141]

Here is some staggering information for you.

About 10 years ago an oil company rep explained to me the benefits of using diesel oils in gasoline engines. It was explained that the oil has a higher film strength due to the increased pressures a diesel engine has as a result of the extremely high compression ratios, and also features additional detergents to combat the soot which contaminates diesel engines- which also happens to keep sludge to a minimum in gasoline engines as well. Of course we now understand the benefits of the additional ZDDP which is found in diesel oils more than we did 10 years ago.

I began using Rotella 10W30 diesel oil (have since changed to using Brad Penn 10W30 diesel oil) in all of my family's cars with the exception of my mother's Lexus ES300 which was only a couple years old and had 17k on it at the time. The Lexus was kept on a diet of Castrol GTX 10W30.

Fast-forward to today- we still own three of the same vehicles we owned 10 years ago, and of the three still around from that era, one recently suffered a major engine failure with 88k on the odometer. Care to guess which vehicle it was? If you guessed the Lexus, you're 100% correct. The engine was FULL of sludge.


O.P.- before you make general assumptions that a diesel oil caused your engine to fail, you first must do research which would eventually prove the point that it wasn't the oil which caused your failure- it just happened to be that diesel oil was in your car when the bearing finally decided to fail.

 

[D's GS-T]

We use what works, and has worked forever.

 

[donniekak]

Same here. Which would be the reason for M1 fs and RP. I wasn't trying to start a war over this. It just seems completely ridiculous to me that you guys are okay with using something that says "diesel" on it.

What's ridiculous is your lack of knowledge on the subject of motor oil. I suggest you go to bobistheoilguy, and read up on different grades of base stock, group 3/4 synthetics, and additive packages, especially zddp. Delvac, Rotella, and other "diesel" oils are blended to be used in turbo engines, with high cylinder pressures, and high fuel contamination, sound familiar?

For all the people screaming mobil1. The mobil one sold in America isn't even a full synthetic.

 

[Calan]

For all the people screaming mobil1. The mobil one sold in America isn't even a full synthetic.

And after the semi-recent test results from FP and one or two others, I won't run Mobile 1 full synthetic in any car I own ever again, without some definitive new test results and proven benefits.

Brad Penn FTW