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chevron delo
04-06-2010, 07:52 AM
Post: #1
chevron delo
high I was waundering if any one has ever use chevron delo 15w/40 in there gas engines! I have a buddy that runs it in his rigs and he says if you have oil leaks or bun alot of oil that it really cuts down on both! So I was trying learn more about delo and I guess that its for deisel so would it still be ok to run it in a gas engine?




scsb, 95 ram 1500, 5.9, cai, 3 inch catback with 14 inch magnaflow!
tough country 2 inch level kit and a 2 inch aal, and a 2 inch pa body lift and 33-12.50 toyo mt on 15x8!
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04-06-2010, 08:46 AM
Post: #2
RE: chevron delo
(04-06-2010 07:52 AM)zte87 Wrote:  high I was waundering if any one has ever use chevron delo 15w/40 in there gas engines! I have a buddy that runs it in his rigs and he says if you have oil leaks or bun alot of oil that it really cuts down on both! So I was trying learn more about delo and I guess that its for deisel so would it still be ok to run it in a gas engine?

It's not so much that Delo and the like are formulated for diesels but rather they contain a lot of zinc additives that oils formulated for gassers no longer contain. When I say oil formulated for gassers, I'm speaking of your run-of-the-mill oils on the shelf like Havoline, Valvoline, Castrol, Pennzoil, Quaker State, etc., 5W30, 10W30, etc. oils.

Delo, Rotella and the like (what most folks consider "diesel engine" oil) still have a lot of ZDDP, an additive, in them which ALL engine oils had 25+ years ago. However, due to increased exhaust emissions regulations, the auto/engine manufacturers forced the hand of the oil companies to come up with different formulas for their oils that reduced the amount of ZDDP in the oil because zinc creates a fair bit of harmful emissions. That said, ZDDP is an outstanding lubricant additive (in oils) and there's been a good bit of information relayed over the last couple of decades regarding the side effects of these reformulated oils. Many flat tappet (read: non-roller tappet) camshafts have been ruined over the last several decades, particularly in initial break-in of new or rebuilt engines, because of the lack of these lubricant packages (ZDDP) in modern "gasser" oils. For a while folks falsely attributed this to the cam cores being made of questionable (read: Chinese) quality steel. Comp Cams, for one, has posted bulletins all over the internet and includes (or at least included for many years) a disclaimer warning letter in every camshaft box they packaged stating they recommend new camshaft/engine break-in (gas engines included) by running Rotella engine oil ALONG WITH their break-in lube.


BOTTOM LINE: you should be fine to run said oil in a gasser. I don't know that you need 15W40, though, unless it's pretty hot. I'm in central Texas which gets and stays pretty warm over the summer and I don't run that thick of oil. Also, the zinc (ZDDP) in that oil MAY (emphasis on "may") create exhaust fumes that could clog your catalytic converter, but I would doubt it. LASTLY, no oil is going to magically cure oil leaks or the such. A leak is a leak and you can either choose to fix it or just live with it and keep a watch on the oil level on the dipstick.




Zac

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04-06-2010, 11:08 AM
Post: #3
RE: chevron delo
(04-06-2010 08:46 AM)ZacD Wrote:  
(04-06-2010 07:52 AM)zte87 Wrote:  high I was waundering if any one has ever use chevron delo 15w/40 in there gas engines! I have a buddy that runs it in his rigs and he says if you have oil leaks or bun alot of oil that it really cuts down on both! So I was trying learn more about delo and I guess that its for deisel so would it still be ok to run it in a gas engine?

It's not so much that Delo and the like are formulated for diesels but rather they contain a lot of zinc additives that oils formulated for gassers no longer contain. When I say oil formulated for gassers, I'm speaking of your run-of-the-mill oils on the shelf like Havoline, Valvoline, Castrol, Pennzoil, Quaker State, etc., 5W30, 10W30, etc. oils.

Delo, Rotella and the like (what most folks consider "diesel engine" oil) still have a lot of ZDDP, an additive, in them which ALL engine oils had 25+ years ago. However, due to increased exhaust emissions regulations, the auto/engine manufacturers forced the hand of the oil companies to come up with different formulas for their oils that reduced the amount of ZDDP in the oil because zinc creates a fair bit of harmful emissions. That said, ZDDP is an outstanding lubricant additive (in oils) and there's been a good bit of information relayed over the last couple of decades regarding the side effects of these reformulated oils. Many flat tappet (read: non-roller tappet) camshafts have been ruined over the last several decades, particularly in initial break-in of new or rebuilt engines, because of the lack of these lubricant packages (ZDDP) in modern "gasser" oils. For a while folks falsely attributed this to the cam cores being made of questionable (read: Chinese) quality steel. Comp Cams, for one, has posted bulletins all over the internet and includes (or at least included for many years) a disclaimer warning letter in every camshaft box they packaged stating they recommend new camshaft/engine break-in (gas engines included) by running Rotella engine oil ALONG WITH their break-in lube.


BOTTOM LINE: you should be fine to run said oil in a gasser. I don't know that you need 15W40, though, unless it's pretty hot. I'm in central Texas which gets and stays pretty warm over the summer and I don't run that thick of oil. Also, the zinc (ZDDP) in that oil MAY (emphasis on "may") create exhaust fumes that could clog your catalytic converter, but I would doubt it. LASTLY, no oil is going to magically cure oil leaks or the such. A leak is a leak and you can either choose to fix it or just live with it and keep a watch on the oil level on the dipstick.

So running delo would be perfectly fine and safe in my 95 ram gas 5.9? I mean the truck has 185,000 on the clock and I and am waundering if that oil would do anything hameful to it being a high milage rig that has never ran it before! thanks for the input!




scsb, 95 ram 1500, 5.9, cai, 3 inch catback with 14 inch magnaflow!
tough country 2 inch level kit and a 2 inch aal, and a 2 inch pa body lift and 33-12.50 toyo mt on 15x8!
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04-06-2010, 11:51 AM
Post: #4
RE: chevron delo
Running Delo would not hurt anything but at the same time it's not going to "fix" leaks and worn cylinder walls or rings.

The old addage "if it isn't broke, why fix it?" applies. Is there a reason you're contemplating switching oils?

With 185k miles on the clock, you're not going to find a "new engine in a bottle" or "tune up in a bottle."




Zac

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04-06-2010, 12:19 PM
Post: #5
RE: chevron delo
(04-06-2010 11:51 AM)ZacD Wrote:  Running Delo would not hurt anything but at the same time it's not going to "fix" leaks and worn cylinder walls or rings.

The old addage "if it isn't broke, why fix it?" applies. Is there a reason you're contemplating switching oils?

With 185k miles on the clock, you're not going to find a "new engine in a bottle" or "tune up in a bottle."

no my dodge does't leak engine oil just tranny fluid from the cooler lines! I am reading alot about how it keep my engine younger longer and I is time to change the oil and it just has me thinking! what kind oil would you say I should use?




scsb, 95 ram 1500, 5.9, cai, 3 inch catback with 14 inch magnaflow!
tough country 2 inch level kit and a 2 inch aal, and a 2 inch pa body lift and 33-12.50 toyo mt on 15x8!
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04-06-2010, 01:16 PM
Post: #6
RE: chevron delo
I would keep using whatever has been used in it thus far.

It's got 185k on the clock...obviously whatever has been used in it has done the job well enough.

Some (synthetic) oils claim superior wear protection and increased efficiency. Perhaps so, but it's not as though it's a new, high performance engine in a sports car. Just how much comfort would you perceive by paying a premium ($5.00+ a quart) for that synthetic oil versus a conventional oil (which has gotten the engine through 185k miles so far) in an otherwise old engine and truck?

A lot of companies market "high mileage" oils for older engines now, as well, and command a higher price for those oils than the standard conventional non-high mileage oils. Again, is the perceived benefit worth the extra $? That's for you to decide. Again, nothing's going to be a "cure" in a bottle. High mileage-marketed oils might have some additives in them to keep rubber seals and such soft, but they aren't going to provide much better protection nor are they going to do something so the engine is more powerful than if you were to fill it up with a quality conventional oil.


I have a similar truck. '97 Dodge 1500 with a 360/5.9 in it with 170k miles on the clock. I simply choose to run a quality conventional 10W30 in it...either from Valvoline, Kendall, Castrol, Havoline or sometimes a house-brand (depending on the parts house and who they have bottle their oils). And not as though it does a great deal other than giving me some sense of feeling as though "more is better," but I run a Ford-type (FL-1A Motorcraft or the equivalent in other brands) oil filter on it. It is the same threading, same filter gasket dimensions and same circumference as the stock Chrysler/Mopar-specific filter, but the FL-1A (Ford style) filter body is about twice as long - in theory a greater oil capacity and greater amount of filtering media surface.

I simply choose to stay away from Pennzoil and Quaker State because I have seen a few engines apart that supposedly had one of those oils run in them all their life (and nothing else) and the build up of cr*p on the cylinder heads, in the lifter valley and in the crankcase was pretty bad. This has been attributed to those two oils being paraffin-based. Believe what and who you wish to, but I'll never buy nor run either of those oils.

Synthetics have their place...don't get me wrong...but I just don't see them as being a worthwhile return on investment in a 5000 lb brick of a truck with a bunch of miles on it. If it were a 3000 lb hot rod or muscle car...sure.




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