See pics and read text at the bottom of the picture

Not really. Oil is just good to have around. The top end corvettes don't have AFM, but still have a massive reservoir of oil on hand.

Some of the GM 5.3 liter trucks use the same AFM system and they don't have an 8.8 qt. pan on them.

Not really. Oil is just good to have around. The top end corvettes don't have AFM, but still have a massive reservoir of oil on hand.

My '05 Corvette, which has basically the same 6 liter engine as the G8 but rated at 400 hp, uses 6 quarts. The Z06 uses 7 qts, I believe, and has a dry sump system with all the associated plumbing.

Some of the GM 5.3 liter trucks use the same AFM system and they don't have an 8.8 qt. pan on them.

The pics posted above are of the 5.3 so I'm still not convinced this is the reason for 9 qts of oil in the G8. You are correct.

9 quarts if freakin over kill. its like $70 oil change

9 quarts if freakin over kill. its like $70 oil change
You could always put a couple of bricks in your oil pan to reduce the capacity, if it bothers you that much. :whine: :whine: :whine:

more oil is a good thing... remember, this is an aussie car. They build them to last, unlike domestic cars.

The 5.3 (LH6) w/DOD has 6qt oil capacity.

more oil is a good thing... remember, this is an aussie car. They build them to last, unlike domestic cars.I like the idea of the car having a higher oil capacity than normal as well too. Yeah it's costly but I'd rather give more money out for oil than a new engine. More oil leads to less wear imo. That's why these cars can drive on longer intervals at least that's how I see it.

That's why these cars can drive on longer intervals at least that's how I see it.

Honestly, I am willing to bet that we can go almost double the miles on this amount of oil, which means, its the same price at the end of the day. Its how I've always justified synthetic oil. Nicer to the engine, same amount of money.

Honestly, I am willing to bet that we can go almost double the miles on this amount of oil, which means, its the same price at the end of the day. Its how I've always justified synthetic oil. Nicer to the engine, same amount of money.I'm certain that you're right. People need to realize that today's oil is way far superior today than years before as far as engine protection and minimum wear is concerned. I personally find it hard to believe that some people still change their oil every 3k miles under normal driving. That to me is a waste of good oil and money. I've read from people who have ran longer intervals had oil samples sent to labs and it has been proven that their engines are in great shape. On my Mustang I change the oil about every 8k miles or every year which ever one comes first. With about 60k miles on it it burns no oil and the old oil looks almost clean when I change it no sludge or anything. I plan on sending an oil sample to a lab this year and get results. Good oil and a good filter that does it's job is the key not no cheap mess. I'm certain that I will get positive results back.

When Pontiac built their own engines (back in the day) it was standard procedure for a Pontiac to take one quart more than a Chevy. Example, 1974 Firebird 350 - 6 qts, 1974 Camaro 350 5 qts.

When Pontiac built their own engines (back in the day) it was standard procedure for a Pontiac to take one quart more than a Chevy. Example, 1974 Firebird 350 - 6 qts, 1974 Camaro 350 5 qts.Why was that? I mean if both cars have the same engine shouldn't they be using the same amount of oil? Seems kind of strange for 2 manufacturers who are under the same cooperation(GM) go by different specs especially when dealing with engine oil.

I'm certain that you're right. People need to realize that today's oil is way far superior today than years before as far as engine protection and minimum wear is concerned. I personally find it hard to believe that some people still change their oil every 3k miles under normal driving. That to me is a waste of good oil and money. I've read from people who have ran longer intervals had oil samples sent to labs and it has been proven that their engines are in great shape. On my Mustang I change the oil about every 8k miles or every year which ever one comes first. With about 60k miles on it it burns no oil and the old oil looks almost clean when I change it no sludge or anything. I plan on sending an oil sample to a lab this year and get results. Good oil and a good filter that does it's job is the key not no cheap mess. I'm certain that I will get positive results back.

Something else. With maching tollerances so much tighter, ring materials so much better, you get less contamination in your oil (carbon, gas, etc), so oil will last longer as well. All sorts of good info about this, mostly from the diesel people, but either way. I'm going to see how long it takes for the DIC to tell me to change my oil, and go from there. I bet it hits 15,000 before it tells me to change it.

Why was that? I mean if both cars have the same engine shouldn't they be using the same amount of oil? Seems kind of strange for 2 manufacturers who are under the same cooperation(GM) go by different specs especially when dealing with engine oil.

Pontiac had their own engine design back them. It was NOT a chevy motor. GM didn't force corporate sharing of engines until the late 70's into the early 80's, which is when pontiac had their last original motor. At that point, chevy was the winning V8, buick was the winning V6, and they still hadn't decided on a decent inline-4

Something else. With maching tollerances so much tighter, ring materials so much better, you get less contamination in your oil (carbon, gas, etc), so oil will last longer as well. All sorts of good info about this, mostly from the diesel people, but either way. I'm going to see how long it takes for the DIC to tell me to change my oil, and go from there. I bet it hits 15,000 before it tells me to change it.Also good points. I'm definitely going to follow the DIC when I get mine. Chiefpontiac explained one time how advanced that system is. I would be more than happy to see 15k per interval. That would be cool!
Pontiac had their own engine design back them. It was NOT a chevy motor. GM didn't force corporate sharing of engines until the late 70's into the early 80's, which is when pontiac had their last original motor. At that point, chevy was the winning V8, buick was the winning V6, and they still hadn't decided on a decent inline-4
Oh ok. I thought that since they were both 350 blocks they were of the same design. Thanks for the info guys! Glad I got to learn a little something today. :)

Diesels run gallons of oil and have VERY long change intervals. I read about a truck that was running Amsoil and he didn't change it for 409,000 miles! He forgot or something. They disassembled the motor and looked amazingly clean and 95% of the cross hatch were still on the cylinders...

Good oil and lots of it! :)

Diesels run gallons of oil and have VERY long change intervals. I read about a truck that was running Amsoil and he didn't change it for 409,000 miles! He forgot or something. They disassembled the motor and looked amazingly clean and 95% of the cross hatch were still on the cylinders...

Good oil and lots of it! :)That's impressive! I need to find that article. My father in law has an Audi A6 diesel and yeah the service intervals run double longer than regular engines. He never changed the oil on his tractor. Over 50 years old and runs like a champ. Lol!

9 quarts if freakin over kill. its like $70 oil change

I just changed my oil for less than fifteen bux!

Kragen has a rebate deal on Castrol GTX right now. (Two bux back per qt). Works out to .99 per qt. I bought two cases...

That's impressive! I need to find that article. My father in law has an Audi A6 diesel and yeah the service intervals run double longer than regular engines. He never changed the oil on his tractor. Over 50 years old and runs like a champ. Lol!

No problem!

http://www.amsoil.com/testimonials/409000.aspx

No problem!

http://www.amsoil.com/testimonials/409000.aspx

I trust those "testimonials" about as far as I can throw my G8. Amsoil is a bunch of crap. Its okay oil, but it isn't what they make it out to be.

I trust those "testimonials" about as far as I can throw my G8. Amsoil is a bunch of crap. Its okay oil, but it isn't what they make it out to be.

Never used it as I chocked it up to "to good to be true"

Never used it as I chocked it up to "to good to be true"

I've personally driven two vehicles to almost 200,000 miles, using all Mobil1, changed every 12,000 miles. The next one was driven 75,000 using exclusively Mobil1, changed every 12,000 miles. Never had a single problem with the motors. None of them every used oil and that's from my constant abuse. I am not easy on cars at all. Mobil1 isn't even that good of an oil, but its a LOT cheaper then Amsoil and doesn't make these insane claims.

No problem!

http://www.amsoil.com/testimonials/409000.aspx

I trust those "testimonials" about as far as I can throw my G8. Amsoil is a bunch of crap. Its okay oil, but it isn't what they make it out to be.
Amsoil did finally apply for, and receive, API testing and certification, which they had resisted for years ("we don't need SAE certification to prove our oil is magically good! :nuts:) I guess they realized that the API stamp at least shows that their product has some standard level of suitability.

Personally I wouldn't touch the stuff with a 10-foot pole. But a lot of that has to do with my dislike of multi-level product marketing.

I've personally driven two vehicles to almost 200,000 miles, using all Mobil1, changed every 12,000 miles. The next one was driven 75,000 using exclusively Mobil1, changed every 12,000 miles. Never had a single problem with the motors. None of them every used oil and that's from my constant abuse. I am not easy on cars at all. Mobil1 isn't even that good of an oil, but its a LOT cheaper then Amsoil and doesn't make these insane claims.

Mobil does claim on there extended mileage oil up to 15,000 mile intervals but I can't seem to get past about 6 or 7...:( I just can't do it... :judge:

Mobil does claim on there extended mileage oil up to 15,000 mile intervals but I can't seem to get past about 6 or 7...:( I just can't do it... :judge:



If you're that concerned, get your oil analyzed and keep upping the miles you go, until they say it doesn't pass.

Or just follow GM's recommendation, and use the oil life indicator.

If you're that concerned, get your oil analyzed and keep upping the miles you go, until they say it doesn't pass.

Or just follow GM's recommendation, and use the oil life indicator.

I'm running Rotella 5W40 syn in my Saturn right now and the lights been on for about 3 weeks or so. I would guess it has just about 4000 on it now. I will probably let it go as it's a lease going in when my GT comes...:)

No problem!

http://www.amsoil.com/testimonials/409000.aspx

i don't believe that i've seen oil at 35K w/out oil change and i don't think you could still call it oil it was like a thick sludge.

Typically, manufacturerers put large sumps on car engines so that they can extend oil change intervals. My wife's '06 M/B SLK has a 3 liter engine and a 9 quart sump with computer directed oil change points....0W40 Mobil 1, no less. Dealer says if the computer doesn't tell you to change the oil within the year, you should at least change it annually. On the other hand, my 8 liter Viper has a 10 quart sump and must have Mobil 1 as well, with standard oil change intervals (which I never even come close to hitting). In the G8GT, it's for extended oil changes, no doubt about it.

I took an automotive class, and just like this forum, when oil was the subject everyone was really interested and there was a lot of discussion.

In the end though, all I'm going to worry about is using an API certified oil (some Amsoil is, some isn't) and change it when the oil life calculator tells me to.

My '05 Corvette, which has basically the same 6 liter engine as the G8 but rated at 400 hp, uses 6 quarts. The Z06 uses 7 qts, I believe, and has a dry sump system with all the associated plumbing.

Interesting. My GTO says oil capacity is 6.5 qts. & add 1 more when driving enthusiastically (autocross, road racing, etc.).

more oil is a good thing... remember, this is an aussie car. They build them to last, unlike domestic cars.

:ohsnap1::gr_jest:

I personally find it hard to believe that some people still change their oil every 3k miles under normal driving. That to me is a waste of good oil and money.

Since I've been using synthetic oil, I've gotten "lazy" & stretched oil change intervals to 4,500-5,000 miles.

Pontiac had their own engine design back them. It was NOT a chevy motor.

And in case Rue didn't know, Buick & Oldsmobile also had 350 V8 engines. All 4 were different. Three of them were similar, while the Chevy was the black sheep of GM.

And in case Rue didn't know, Buick & Oldsmobile also had 350 V8 engines. All 4 were different. Three of them were similar, while the Chevy was the black sheep of GM.

Not to mention, caddy had their own engines up until 81 as well. Just not a 350 (to my knowledge). They had the AWESOME 500ci motor. Biggest production engine in a car, for the longest time.

Not to mention, caddy had their own engines up until 81 as well. Just not a 350 (to my knowledge). They had the AWESOME 500ci motor. Biggest production engine in a car, for the longest time.

The 500cid will remain as the largest V8 for a long time. Dodge brought their V10 up to 8.3L/505cid & then jumped to 510cid/8.4L. GM's current truck big block V8 is real close at 8.1L/496cid.