If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#41
|
|||
|
|||
Burning Oil
On Mon, 14 Sep 2009 20:07:14 -0700, jim beam > wrote:
>On 09/14/2009 07:30 PM, Elle wrote: >> (M.A. Stewart) wrote: >>> Since you have resigned yourself to possibly replacing the motor in >>> the distant future, try experimenting with heavier oils (20W50, 20W40, >>> 10W40). >> >> Yes I think this is definitely worth experimenting with a little. I >> will probably give the Mobil 1 a chance for another six months, then >> try a heavier oil. >> >>> Looks like you have nothing to lose. 1200 miles per quart isn't >>> great, but its not that bad. At least it isn't 500 miles per quart. Try a >>> 20W50 oil for 2000 miles and see if the oil consumption is reduced. Try >>> what the other person said, which was a 10W30 oil and the additive >>> called "CD-2". >> >> I will research the CD-2, thanks. > >stay away from that stuff. it cokes up engines something chronic. it's >just a short term fix designed to shift junk off a sellers driveway. I agree. Just use the highest viscosity the manual recommends for your temp range and keep a few bottles in the trunk. Just keep checking it once a week and add as needed. I actually think 1200 miles per qt is fine for a car with 190,000 miles. If it doesn't make it to a quarter million, it won't be because of this oil burning problem (unless you run it dry). |
Ads |
#42
|
|||
|
|||
Burning Oil
On 09/15/2009 06:02 PM, Gordon McGrew wrote:
> On Mon, 14 Sep 2009 20:07:14 -0700, jim > wrote: > >> On 09/14/2009 07:30 PM, Elle wrote: >>> (M.A. Stewart) wrote: >>>> Since you have resigned yourself to possibly replacing the motor in >>>> the distant future, try experimenting with heavier oils (20W50, 20W40, >>>> 10W40). >>> >>> Yes I think this is definitely worth experimenting with a little. I >>> will probably give the Mobil 1 a chance for another six months, then >>> try a heavier oil. >>> >>>> Looks like you have nothing to lose. 1200 miles per quart isn't >>>> great, but its not that bad. At least it isn't 500 miles per quart. Try a >>>> 20W50 oil for 2000 miles and see if the oil consumption is reduced. Try >>>> what the other person said, which was a 10W30 oil and the additive >>>> called "CD-2". >>> >>> I will research the CD-2, thanks. >> >> stay away from that stuff. it cokes up engines something chronic. it's >> just a short term fix designed to shift junk off a sellers driveway. > > I agree. Just use the highest viscosity the manual recommends for > your temp range and keep a few bottles in the trunk. Just keep > checking it once a week and add as needed. I actually think 1200 miles > per qt is fine for a car with 190,000 miles. If it doesn't make it to > a quarter million, it won't be because of this oil burning problem > (unless you run it dry). > > mine was burning at that rate, but has since dropped to one quart per 4 or 5k. |
#43
|
|||
|
|||
Burning Oil
On 09/15/2009 06:58 AM, C. E. White wrote:
> "jim > wrote in message > t... >> On 09/15/2009 03:53 AM, Elle wrote: >>> On Sep 14, 9:04?pm, jim > wrote: >>>> ?even if the >>>> valve guides are chronically worn, if the seals are sealing, >>>> there's no >>>> oil loss. >>> >>> A lot of auto maintenance sites (not just random people posting) >>> state >>> that either the valve stem seals or the valve guides may be >>> failing. >> >> 1. your honda valve guides are not submerged. > > It doesn't matter. Oil is being flung all over the inside of the valve > cover. If your guides are worn and your seals are worn, oil will be > sucked in through the intake guides. it does matter - submerged guides can leak literally pints. > >> 2. it's been known for internet "experts" to be full of it. > > True > >> 3. i've experimented with /no/ seals - you lose a little, but it's >> not a massive source of loss. > > True as well. I've had engines that did not even use valve stem seals > (Jensen-Healey 2.0L Lotus 4 cylinder) and others that only used them > on the intake valves. However, when you say "you use a little," that > might add up to a lot in the eyes of some people. For a new engine > with minimal valve stem to valve guide clearance, the loss will be > small. However, for an older engine with worn stems and guides, the > loss can be significant. In the old days this was still trivial in > many cases. However, with modern engines, severely worn guides can > casue several problems - excessive air leakage will screw up the PCM's > calculation for fuel delivery and excessive oil consumption can damage > a catalytic converter. right, but that's a whole different issue. > >>> I >>> understand what you're saying but it is hard for me to say from the >>> Civic shop manual drawing whether a new, properly installed valve >>> stem >>> seal alone will ensure no leakage in this area. >> >> unless it's lost flexibility, is worn or cracked, it will. > > New seals will help, but becasue of the excessive play, they won't > last as long, and they will still let more oil past than seals on > unworn guides and stems. but they are literally weeks old - no "lasting" problem. > Seals have to allow some oil past to keep the > valve stems and guides lubricated, so they aren't perfect seals by > design. untrue - the stems and guides run dry. the seal is there to do just that - seal. > >>> Regardless, for now I am going the route of trying to clean things >>> up >>> with continued use of Mobil 1 and/or maybe Auto-RX. > > If the engine is only using a half a quart per 600 miles, I'd just > drive it. With 197,000 miles on the engine, it is not just the valve > train that is worn. a honda should be up there at at least 300k. |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
96 SL1 burning oil... Suggestions? | SMoo | Saturn | 15 | August 9th 06 11:30 AM |
VW says burning oil is acceptable | 99Passat | VW water cooled | 15 | April 20th 06 05:23 AM |
93 SL-1 oil burning help | Chris | Saturn | 1 | March 11th 05 02:23 PM |
99 M3 burning oil? | Kanwar Dhaliwal | BMW | 2 | January 6th 05 08:25 PM |
Burning oil/PCV valve | Lee3333 | Saturn | 2 | September 11th 04 07:53 PM |