Crap. Mixing oil weights?

[LittleBigFoot]

I've sealed up a few oil leaks on my 72 using high temp RTV. Works fantastic on exhaust leaks too

 

[Tedybear]

If it turns out to be a punch hole in the pan? (not rust...not sure how this would work on a rust hole) Napa sells a form of JB weld called I think "Wet Weld" We have a good size hole in our tibby's oil pan at the base, looks like the PO nailed something that punched a hole in it. It was patched badly, and a few months ago we re-did the patch using that stuff. It's rock solid and it's sealed it down tight. Pretty cheap as well.

S-

 

[Ranger Sport Honduras]

u know i knew this guy whos' truck had a terrible oil leak, so he always had an old pan to put under the truck when he parked it to collect the oil and put it back in the engine lol.

 

[Ranger Sport Honduras]

If it turns out to be a punch hole in the pan? (not rust...not sure how this would work on a rust hole) Napa sells a form of JB weld called I think "Wet Weld" We have a good size hole in our tibby's oil pan at the base, looks like the PO nailed something that punched a hole in it. It was patched badly, and a few months ago we re-did the patch using that stuff. It's rock solid and it's sealed it down tight. Pretty cheap as well.

S-

yeah his is a rust hole

 

[Frank The Tank]

u know i knew this guy whos' truck had a terrible oil leak, so he always had an old pan to put under the truck when he parked it to collect the oil and put it back in the engine lol.

Now that's innovative!!!!! You should sell that idea!!!!

Frank

 

[cammeddrz]

to be the milliont guy on this thread to agree. as a teen i worked 5 years in the quick-lube industry (jiffy lubes mostly) and then on to full-fledged mechanic work, and now manage the service department of a mitsubishi dealership. in my racing/off-roading career, and my professional day job i have re-built near 100 engines


all that being said not only will mixing viscosities ("weight" is a mis-nomer for oil the "w" stands for winter) cause zero problems, nor will mixing conventionals/and synthetics.

not just that changing back-and-forth between conventional and synthetics causes no problems as well.

now that i have said that let me finish with saying oil is like religion, every person thinks they have all the facts, and every person thinks what they have chosen to believe is the right belief. and will argue their side until they die

 

[Frank The Tank]

Just don't use diesel oil in gas engines.

Frank

 

[cammeddrz]

Just don't use diesel oil in gas engines.

Frank

i disagree strongly. maybe not the other way around............maybe. i frequently use 15w40 diesel oil in gas engines. nevery tried gas oil in a diesel but with these new diesels with wet-clutches in their turboes they need that friction modifier for sure

 

[Frank The Tank]

You can disagree all you want, I've seen it first hand....... you think toyota had a sludge problem, ha.

Frank

 

[cammeddrz]

You can disagree all you want, I've seen it first hand....... you think toyota had a sludge problem, ha.

Frank

now i'm not married to my thoughts on this. explain it so i can be educated for the future. better to be right starting now than to be wrong.
what problems occur? what is the reasoning and processes that cause the problem? and how do the different makeups in diesel grade oils play into these factors?

and also i was unaware of a specific sludge problem unique to toyota

 

[heptofite]

You can disagree all you want, I've seen it first hand....... you think toyota had a sludge problem, ha.

Frank

wait seriously?

i've been running rotella in my 2.9 for as long as i can remember...

 

[cammeddrz]

sorry upon your statement i googled it and found this:

it is the norm for all diesel rated engine oils to carry the "corresponding" gasoline specification. For example, API CJ-4 will almost always list either SL or SM, API CI-4 with SL, API CH-4 with SJ ... etc

that's not saying what you're saying is not true. i am curious to understand the the "what". the "how", and the "why" of this occurance. the oils are obviously different in some way (as far as i know it is in the phosphorus and zinc content). maybe that difference does cause something to happen. but what i don't understand is that as far as the oil is concerned it only ever sees bearings, gears, tappets, and chains in either type of engine

 

[exbass94]

sorry upon your statement i googled it and found this:



that's not saying what you're saying is not true. i am curious to understand the the "what". the "how", and the "why" of this occurance. the oils are obviously different in some way (as far as i know it is in the phosphorus and zinc content). maybe that difference does cause something to happen. but what i don't understand is that as far as the oil is concerned it only ever sees bearings, gears, tappets, and chains in either type of engine

+1 Frank, with all due respect, you're wrong. You absolutely can use diesel oil in a gas engine, especially since as cammeddrz noted, diesel oils are dual-rated for gasoline use.

 

[adsm08]

Diesel oil is ok for use in gassers. I think the issues (particularly Frank's issues) is that diesel rated oils carry extra detergents to deal with the extra soot and carbon made by a diesel engine.

If you put it in an OLD gas engine it may clean it out so well that it overloads the filter and the oil's ability to keep particles suspended. That would cause the excess to settle out into the pan, thus causing a sludge issue.

That's just a theory mind you. But I bet you can't disprove it either.

 

[strvger]

i've used Rotella as well. never had a problem. maybe after the first run thru and the engine is cleaner as a result, there shouldn't be any further potential problems using it? just curious.