[JustinRaney]

Hey yes im aware of full synthetic, synthetic blend differences and just what is called conventional oil. Thanks for the confirmation.


So its safe to assume this qauker state all mileage is a nice synthetic blend that can be run up to 5k miles? Or is can it be run higher mileage 6-7k? I may just return or swap this 10w30 ive been using for the 5w30 to walmart though ive been using 10w30 the last 30k miles on the car because of the texas heat. Only thing that caught my eye is i was changing the 06 saab 9-5 turbo oil and seen it was 5w30 so went specifically with a full synthetic 5w30 supertech 10k mile oil last year when i was changing the oil on that car as the oil is also run thru the turbo oil feed/drain extra added heat protection from full synthetic. Really am trying to make sure to get the most mileage out of these engines as i was disfigured in a car wreck in 2017 age 27 after someone had rear ended my 2001 ford escort so im somewhat disabled why i prefer doing less oil changes and get the expected mileage out of the oil its a real pain for me. Im somewhat mechanically inclined at age 17 but after having been disabled from that car wreck left me paralyzed a bunch of slipped disc and permanent spine ribcage pain.

 

[SeniorSitizen]

Oil viscosity will never solve the oil leaking problem on a 15 year old engine so replace cover gasket then determine if the crankcase vacuum is correct .

 

[lenaitch]

I have a hard time following the OP's posts - too much irrelevant data and irrelevant other vehicles. I don't really have a position on conventional vs. synthetic oil; I've always used conventional in my vehicles (except my newer Honda which calls for 0wxx) and changed it and the filter per the book if not sooner.

If the goal is keep an old blister running as long as possible, don't make your decision based on price. At best you are saving a handful of dollars per change.

 

[chandler48]

Debating whether i should return the 10w30 for a 5w30 jug from the local walmart 5 minutes up the road.

Debate??? With whom?

Change your oil when you can't read through it on the dipstick.

Now about this thicker oil debate

Again, there's no debate on thicker oil. Use the oil called for by the manufacturer and fix your leak. Bearings wear. Oil won't help it.

 

[JustinRaney]

Ah here it says my g6 owners manual use 5w30 or 0w30 if -20f degrees. Do not use thicker oils 20w50. Doesnt mention anything about 10w30 or 10w40.

Here on ls1 v8 says 5w30 above 0 10w30 can be used for 99 corvette or camaro ls1 5.7 im hoping when i did the last oil change i did use 10w30 full synthetic quakerstate after the cam swap last march. Im pretty sure i didnt select 10w40 as the car has 94k miles pretty low mileage. I think i did go with 10w30 vs the oil caps 5w30 but it never gets below 0 here in texas coldest is 20f degrees in the winter rarely.

SAE30 can be used. I still think itd be fine to run the 10w30 opposed to the 5w30. 5w30 or 0w30 is in reference to -20-0f 10w30 is recommended around 40f or above.

just make sure not to sae50 or 20w50 it.

The thinner oil less friction more power.

 

[chandler48]

Do not use thicker oils 20w50. Doesnt mention anything about 10w30 or 10w40.

That's about the (I can't think of a word) comment of the day. It says "Do not use thicker oil" Gee, what do you need?

SAE30 can be used

No it can't. SAE 30 is a non detergent oil and will kill your engine.

 

[JustinRaney]

I still think in 80 degree heat 10w30 would work fine lol.

 

[JustinRaney]

That's about the (I can't think of a word) comment of the day. It says "Do not use thicker oil" Gee, what do you need?


No it can't. SAE 30 is a non detergent oil and will kill your engine.

It says here if it falls below -20f 5w30 or 0w30sae can be used is 0w30 not simply sae30?

 

[chandler48]

WIth all the good advice given to you on this matter, and you still want to do the wrong thing, I think you should run the 10W30 in everything until they won't run any longer. You will have gotten all the money's worth from the cars and you can scrap them for $10 each. You already have your mind set on doing it anyway, so don't listen to good advice.

You have absolutely zero knowledge of the oil matter, but are hell bent on doing it. No you can't use SAE 30 except in a lawn mower.

if it falls below -20f

If, If , If....if frogs had wings, they wouldn't bump their butts when they landed.

 

[JustinRaney]

Man here is my proof is 0w30 not SAE30? I may be mistaken not sure what sae means straight 30 weight no with a 0?
5w30 or 0w30 0 degrees or below. 5w30 for 0 and above this is the g6 manual not the 20w50 or higher viscocitys.

Use only 5w30 synthetic oil below 0-20 degrees or 0w30 for extra added lubrication. May i ask is there a 0w30 or is sae30 which i always thought meant straight 30weight meant simply 30weight oil.

Is the sae 30 or sae50 simply a 30w30 and 50w50 on cold starts?
Read the second paragraph about 0w30. 0w30 means theres nothing if you ask me for the first start as in 0 viscosity? Depends i dont know specific oil grade scales when it comes to 0 viscosity.

 

[JustinRaney]

I was using 10w30 the last 20k miles its 107 degrees here in summer texas heat. Im going to return the quaker state 10w30 in favor for a 5w30 i hope they have one on the shelf. A guy over on the g6 forum has 266k miles on his 06 g6 v6 3.5l im hoping to get the same mileage. The 2007 g6 isnt driven hard its my younger brothers daily driver for work i just do that mechanics to it. That little article from the owners manual in the glove box should give all the information needed.

I probably do need to figure out how to do a transmission fluid change on this car as its at 182k. Im hoping there a bolt drain plug would be nice to change the auto trans filter to get the most life out of the transmission.

 

[JustinRaney]

WIth all the good advice given to you on this matter, and you still want to do the wrong thing, I think you should run the 10W30 in everything until they won't run any longer. You will have gotten all the money's worth from the cars and you can scrap them for $10 each. You already have your mind set on doing it anyway, so don't listen to good advice.

You have absolutely zero knowledge of the oil matter, but are hell bent on doing it. No you can't use SAE 30 except in a lawn mower.



If, If , If....if frogs had wings, they wouldn't bump their butts when they landed.

Im pretty smart dont drop your finger dude i seen jeepers creepers 3 sucked and an axe ended up in his head.

Ive been tied up in a big audit for the last 10 years from late 2012 i havent been around to see these new spaceship type of vehicles? May i ask are you military or receive military contact?

Yes im going by what the owners manuals i have here go by need to return this 10w30 for a 5w30. Not sure why it says full synthetic 5w30 or 0w30 below 0 degrees- -20f.
Read the paragraph in the photos from the manual i uploaded.
This was a good conversation the owners manual wins the debate or solves the question. Dont mess up my ride dude.

 

[JustinRaney]

Im all for a good oil discussion but youre tearing into a lawnmower at this point.

 

[notnew2diy]

A simple google of... What does SAE stand for?
Answer... Society of Automotive Engineers

SAE30 = straight 30 weight oil.
xxWyy oil = detergent oil. It also has additives to reduce friction at start up in cold weather (the xx).

Older engines leak. I, personally, would not use synthetic in a used engine unless it had synthetic from day-1.

Back in the day, dunno if it still applies, Pennzoil had a wax substance within the refined oil.

I always use mfg recommendation on what weight oil to use cuz they have spent tons-o-dollars on research.

FWIW.... I knew a lady who drove a Cadillac close to 100K miles. Wondered why her car would not start one very cold day. Come to find, she had never changed the oil....believe it or not.

It's your toy. Play with it how you want....Don.

 

[peter1122]

I still think in 80 degree heat 10w30 would work fine lol.

if you think you are smarter than the engineers who designed the engine, then use whatever you want

 

[JustinRaney]

Yeah i bet i use to use the 10w30 10w40 quaker state in my 66 fairlane 351cleveland 4v 9" with 4.10s 4 speed toploader when i was 17 in high school class of 2007.
I since bought a 95 z28 6 speed at 18 not sure what oil i used there but purchased a 98 z28 hardtop 6 speed with 119k miles for 3800$ with ttl from a small car lot. Its was in great condition bone stock. I used autozones valvoline i believe full synthetic 10w30 which is recommended for 0-40f above in the ls1 5.7 manual. Made 375whp 375wtq smaller cam then the corvette, headers and ud pulley. I later thru a s475 borg warner 1.32 ar turbo on it made 501whp 465wtq at 6lbs and possibly 550whp 500wtq 9lbs. Ran 126mph-131mph 128-129mph in 30-40 degrees midnite weather at san antonio raceway. Didnt use slicks or drag radials so the 60fts were slow 2.2. That was from 2009-2013 when i was 19-23. Im 33 now and suffered severe body damage from the idiot that ran into the back of my 2001 escort daily driver.

 

[JustinRaney]

if you think you are smarter than the engineers who designed the engine, then use whatever you want

Its hard to say thats what recalls are for. Some things could be designed better.

 

[chandler48]

Older engines leak. I, personally, would not use synthetic in a used engine unless it had synthetic from day-1.

I had toyed with the idea on my 2001 Cummins, but at 561,000 miles, and it ain't broke, don't fix it.

 

[JustinRaney]

A simple google of... What does SAE stand for?
Answer... Society of Automotive Engineers

SAE30 = straight 30 weight oil.
xxWyy oil = detergent oil. It also has additives to reduce friction at start up in cold weather (the xx).

Older engines leak. I, personally, would not use synthetic in a used engine unless it had synthetic from day-1.

Back in the day, dunno if it still applies, Pennzoil had a wax substance within the refined oil.

I always use mfg recommendation on what weight oil to use cuz they have spent tons-o-dollars on research.

FWIW.... I knew a lady who drove a Cadillac close to 100K miles. Wondered why her car would not start one very cold day. Come to find, she had never changed the oil....believe it or not.

It's your toy. Play with it how you want....Don.

My father thinks synthetic is bad as well as thinner oil leaks. I personally use and always used full synthetic in my cars except for my 66 at 17 i used conventional quaker state.

Yes ive heard of the same issues or similar certain oils were bad. Are you saying this wax substance pennzoil had was a bad deal? Ive always used and trusted valvoline or mobile 1. Now for the not hard driven daily driver i think conventional or synthetic blend is fine.

The 2007 g6 and 06 saab 9-5 turbo are both my younger brothers and fathers. I just do the oil changes on them.

 

[JustinRaney]

well swapped the 10w30 for the 5w30 problem solved 5 minute trip up to walmart.