How many miles per quart of oil?

[Paul Workman]

Thought it would be interesting to see what others are experiencing, far as oil consumption goes. I've heard and read where the LT5 is prone to using more oil than say SBCs, but if so, how much?

Please take the poll, and if you would, post up what has been done to your motor and how much spirited driving you will admit too!;)

Should be interesting.

NOTE: TYPO! THE BOTTOM CHOICE WAS SUPPOSE TO BE UNDER 1000. Please treat as under 1000 miles. (unable to edit the poll...a long time gripe with this software...)

:cheers:

P.

[efnfast]

Currently I've done headers and exhaust. Lost the cats. Installed a M.H. chip.
When I answered the poll, I'm just about 2000 miles, so I answered 2-3000.
Spirited driving? Oh-yeah. Usually sees a buck or better every time she comes out. I love the skinny pedal.

Paul, because you know how, how about a survey on miles per oil change? -Steve

[efnfast]

Currently I've done headers and exhaust. Lost the cats. Installed a M.H. chip.
When I answered the poll, I'm just about 2000 miles, so I answered 2-3000.
Spirited driving? Oh-yeah. Usually sees a buck or better every time she comes out. I love the skinny pedal.

Paul, because you know how, how about a survey on miles per oil change? -Steve

Oh, BTW, I'm driving a MY90, so no exhaust valve seals. I ASSUME this contributes to oil consumption.

[SteelBlueZR1]

8,500 mile 1991 ZR-1 has not used any motor oil in the past 5,000 miles, since oil change. Motor Stock, 10-30 Mobil 1 High Miles. Hard driving seldom, except for 2 recent autocrosses. Nowhere around Baltimore to safely explore ZR1 limits without going to jail.

[scottfab]

Really depends on how I drive it of course. At the track I'll use a quart in 20 miles :)

[tomtom72]

Okay, I voted "under 1000". I can make one quart vanish in an afternoon on a new O & F change.....all I need to do is stay above 3k rpms and never get to 5th gear; certainly never, ever get to 6th gear.

Bone Stock 90 LT5 with Marc's mail order EPROM.
Oil: M1 10w-30 full synthetic in the silver bottle w/silver cap.
Filter: it don't seem to matter whose I use, oil consumption is the same.

Okay, now for normal driving....I leave NYC, drive to BG and back and she will need a quart of oil. Usually that round trip is about 2200 miles. That's also on a fresh oil & filter change. Only thing is, I am fairly sure after driving with Jingles on a check ride I need to add some oil. JMHO on a 90 LT5 oil consumption maybe more a function of coolant temp and rpm. :o JMHO

:cheers:
Tom

[scottfab]

... snip...
JMHO on a 90 LT5 oil consumption maybe more a function of coolant temp and rpm. :o JMHO

:cheers:
Tom

Try adding one or two qts of 10w40 to lower consuption.
Works on my mostly stock 90. Remember we don't need no stinking exhaust valve seals. We have a true British influenced design.
Leaks/burns oil. :-({|=

[scottfab]

....snip...

NOTE: TYPO! THE BOTTOM CHOICE WAS SUPPOSE TO BE UNDER 1000. Please treat as under 1000 miles. (unable to edit the poll...a long time gripe with this software...)

:cheers:

P.

One of the more frustrating things about posting a poll.
DON'T make a mistake. No edit feature. [-X
Been there done that.

[tomtom72]

Try adding one or two qts of 10w40 to lower consuption.
Works on my mostly stock 90. Remember we don't need no stinking exhaust valve seals. We have a true British influenced design.
Leaks/burns oil. :-({|=

Thanks Scott for the tip! I like your thought on the British influence! LOL Bravo! The way my motor behaves I almost think it likes the oil level to be at the "add" mark. The burn/use rate is waaay slower when it gets down to that point. :o However, I hardly ever get to 6th, and 5th rarely in normal driving unless it's early or very later and the roads are empty. JMHO, the higher the rpms, the higher the coolant temp, the higher the oil temp; the faster that hash area qt burns/is used up! I don't mind checking the oil before start up.:)

:cheers:
Tom

[mike100]

Even though my last oil change was more than 2000 mi per qt, I put 1000-2000 because of previous history of adding qts when I drive it hard, which is the preferred method with my vette it would seem.

[Hib Halverson]

Really depends on how I drive it of course. At the track I'll use a quart in 20 miles :)

Now there's a smokin' old LT5, for sure. Keyrist...it's almost a diesel.

overhaul your engine, "scottfab".

[scottfab]

Now there's a smokin' old LT5, for sure. Keyrist...it's almost a diesel.

overhaul your engine, "scottfab".

It's occurred to me. And yet at normal driving at 60mph it's 1000-2000 range. I figure it's all lack of seals. She's got 92k miles.
I should have added I was using 0W30 on last track day. Mistake.
Haibeck is bound to see me one day though.

[Paul Workman]

Seems my experience is in the ballpark. Heavy afternoon of throttle and twisties with lots of third gear and maybe half a quart or a little more (my 90 has seals later installed with head work).

And, this tendancy to use more "off the top" rings a bell with my use as well.

More data fer sher, but so far, very interesting!

Tom, hopefully you and Frank & the rest found a high/dry spot for your Z!

[tomtom72]

Hi Paul....welcome back! Yea, my kin and I are all okay. I'm concerned for Frank and his family. Kevin said he had contact and Frank & family are okay, but the house is a mess.

:cheers:
Tom

[Paul Workman]

ttt

[Marc Haibeck]

This is a description of my experience with oil consumption. Also, my theory about why it happens.
http://www.zr1specialist.com/HAT%20Web/articles/my%20experience%20with%20LT5%20oil%20consumption.h tm

[WARP TEN]

....Haibeck is bound to see me one day though.

Haibeck will see me tomorrow when I drop the car off for about 6 weeks of work. :dancing Send yours in Scott. Lots of room for company! --Bob