Finally got the '98 C4S Home
#1
Instructor
Thread Starter
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
I picked up my new to me '98 C4S (forest green.....I am told the only forest green C4S imported to the US in '98 but haven't verified)! Yes, yes, I will post pictures as soon as I detail the car this weekend (weather permitting). It was pretty much as advertised (bought it in Florida sight unseen but Zotz Garage did a PPI). A couple of minor disappointments but overall I am very happy with the car.
I have two questions:
1. I have a slow pin hole leak in the right rear sidewall tire. They are Bridgestone Potenza S02A with lots of tread left (60%). Since the hole is in the sidewall, should I just replace the tire or can it be repaired? If I have to replace it, should I replace both rear tires?
2. All compressions and leak down from PPI came back strong and no issues. However, When I picked up the car, it had been sitting in a garage for 2 months without being driven and it ended up being one quart low. I have now driven the car about 300 miles and the oil is low again. Just had a Mobile 1 change in January, probably no more than 500 miles ago. Garage floor is dry after the car being in there a week. Any thoughts?
Cheers!
I have two questions:
1. I have a slow pin hole leak in the right rear sidewall tire. They are Bridgestone Potenza S02A with lots of tread left (60%). Since the hole is in the sidewall, should I just replace the tire or can it be repaired? If I have to replace it, should I replace both rear tires?
2. All compressions and leak down from PPI came back strong and no issues. However, When I picked up the car, it had been sitting in a garage for 2 months without being driven and it ended up being one quart low. I have now driven the car about 300 miles and the oil is low again. Just had a Mobile 1 change in January, probably no more than 500 miles ago. Garage floor is dry after the car being in there a week. Any thoughts?
Cheers!
#4
Burning Brakes
Join Date: Apr 2003
Location: Los Angeles
Posts: 750
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
For all intents and purposes, the gauge is worthless. Get the engine oil nice and hot, park on level ground and check the level using the dipstick while the engine is running. Be sure to let the car idle for a minute or so before checking so that oil can drain back into the tank.
#5
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
On the pin leak, you might see if someone will put a small patch on the sidewall. Tire shops normally won't do it. I'd only do that if the leak is really slow from a very small intrusion and I was confident the sidewall was not damaged structually in any way. I'd also check that pressure all the time because sidewall patches are prone to coming off. Then drive it hard and see how fast you can move onto a new set of rears.
On the oil, I assume you are checking with the dipstick with the car fully warmed up. My car looses oil quickly if I take it up to the top of the twist on the dipstick, but not if I keep it under 1/3 - 1/2. When you say it is low, is it below the twisty section on the dipstick.
How many miles on the car? I hate to bring up valve guides, but they can be shot even with good leak down and compression.
On the oil, I assume you are checking with the dipstick with the car fully warmed up. My car looses oil quickly if I take it up to the top of the twist on the dipstick, but not if I keep it under 1/3 - 1/2. When you say it is low, is it below the twisty section on the dipstick.
How many miles on the car? I hate to bring up valve guides, but they can be shot even with good leak down and compression.
Trending Topics
#8
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Was that the same car on eBay a few months ago? I remember seeing a nice one in that color from Florida.....
And, yeah, as everyone says: forget the gauge and use the dipstick only; you probably have too much oil in it now. 1/2 on the twist is ideal for me, too.
Congrats on your purchase. How does it compare to your plumbed version?
And, yeah, as everyone says: forget the gauge and use the dipstick only; you probably have too much oil in it now. 1/2 on the twist is ideal for me, too.
Congrats on your purchase. How does it compare to your plumbed version?
#11
Three Wheelin'
#13
Burning Brakes
#14
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
re. oil guage, it is useful, IMO, to indicate general oil level. I use it for that and find it very good for this purpose. It's accuracy varies car to car though. Some 993s have issues with the float or are not near calibrated. It is also much more sensitive to oil temp.
Bottom line: It is much better than an "idiot light" but not as good as the dipstick.![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
For your purposes (determining oil usage), as others have said, use the dipstick.
Bottom line: It is much better than an "idiot light" but not as good as the dipstick.
![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
For your purposes (determining oil usage), as others have said, use the dipstick.
#15
Rennlist Member
Join Date: Apr 2006
Location: Rainforest (Vancouver, BC)
Posts: 7,593
Received 1,047 Likes
on
472 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Congrats Jon, sounds like a real beauty. We'll be able to tell for sure WHEN YOU POST PICS!![Wink](https://rennlist.com/forums/images/smilies/wink.gif)
As others have said, don't rely too much on the gauge. Get the car completely up to temp and check the stick. Best way to do this is drive it and check the oil while you're out.
Tires? Kinda like shoes to me. Would you wear someone else's gym shoes? Unless they were brand new, I'd put a new pair on the rear at the very least, all around if possible. Tires are relatively cheap compared to the cost of your new pride and joy, even in this market.
![Wink](https://rennlist.com/forums/images/smilies/wink.gif)
As others have said, don't rely too much on the gauge. Get the car completely up to temp and check the stick. Best way to do this is drive it and check the oil while you're out.
Tires? Kinda like shoes to me. Would you wear someone else's gym shoes? Unless they were brand new, I'd put a new pair on the rear at the very least, all around if possible. Tires are relatively cheap compared to the cost of your new pride and joy, even in this market.