Last post on Oct 02, 2013 at 6:59 PM
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#8932 of 8944 Re: 2000 Toyota Camry 4 cyl Excessive Oil Consumption [kellysiak]
by MrShift@Edmunds HOST
Jun 08, 2012 (8:25 am)
Well you're either leaking it or burning it, so that would be the first step--to determine cause of the loss.
For spotting a leak, you'd have to lift the car and look for what I would suspect would be a considerable "oil wash" underneath the car. That's not as big a leak as it sounds (those little drops add up) but it's serious.
For oil burning, you can perform, or have the dealer perform, a cylinder leakdown test, in which compressed air is injected into each cylinder and the rate of escaping pressure is measured over time. This test is also good because it can possibly tell you not only that you have internal engine wear, but perhaps the cause of it. For instance, a clever technician might notice air escaping out the tail pipe, through the crankcase breather, or through the air filter---each one telling him something different as to the cause of the internal engine wear.
Given the age and mileage on the car, I would not get my hopes up about Toyota doing anything about it. If it is any consolation, since the oil burning rate has stabilized, your car will probably run like that for a long long time, as long as you keep the oil topped up.
Oh, one last thing. Have the PCV (positive crankcase ventilation) system checked for blockage. A non-breathing crankcase will push out oil anywhere it can.
#8934 of 8944 Re: Now I'm scared follow up [gsleve]
Jul 03, 2012 (8:19 pm)
I was on the scene as a Mobil Oil management employee in 1975 and ran an award winning Auto service center in 1979 for Sales and Profit.-Mobil 1 at that time was a 50,000 mile oil with filter removal at 25,000 and changed plus add 1 quart.My dad bought a brand new Corvette and after breakin was done Mobil 1 was put in and at 25,000 the filter was changed and at 50,000 it was total changed.The drained oil was clean and looked almost brand new.I have 221,000 on a 1997 Ford Truck V-8 that uses Mobil 1.--A 1967 Chevrolet Caprice Classic with 54,000 and was changed over to Mobil 1--.A 2007 Ford Taurus with 80,000 uses Vavoline synthetic.--Have not been able to find out why Mobil 1 was downgraded to 15,000 miles.--Any answers?
#8935 of 8944 Re: Now I'm scared follow up [eladoj]
Jul 03, 2012 (10:43 pm)
Have you run oil analyses on the oil at change to determine whether wear metals and TBN were within tolerable limits? Those are primary factors in determining the suitability of oil.
I suspect that the 15,000 interval for M1-Extended is a safe bet by the manufacturer in lieu of analysis. In other words, one could use the oil at that interval in most vehicles and expect that were it to be analysed after 15K, it would be readily protecting the engine. Beyond that and the specific application, quality of filtering, etc., would play roles in how long it would last before protection diminished.
Sep 10, 2013 (6:27 pm)
The car: My daughter's '02 Jetta 2.0 with ~81,000 miles.
The issue: Two types of oil approved by VW for this engine are Mobil 1 5W40 and Castrol synthetic 5W40. My daughter took her car to a local gas station for an oil change and asked for synthetic. No other instructions. The old Castrol oil was replaced with Duralene 5W30 full synthetic. I'm not familiar with this brand so I don't know the quality of this product.
After having been driven about 1,400 miles since this oil change the level is down about 1/3 quart. That's normal for this car.
Question: I have a supply of Castrol 5W40 synthetic. Would it be okay to use the Castrol to bring the level to the "full" line sometime before the level gets to the "add" mark? In other words, would mixing oil brands damage the engine or cause adverse effects? It would be convenient, since I already have the oil, but I don't want to cause any harm. Please advise.
#8938 of 8944 Re: Mixing Motor Oils [hpmctorque]
Sep 11, 2013 (6:20 am)
Not a problem to use those two oils together. However, being down 1/3 qt. is not a concern. You're fine just as it is.
#8939 of 8944 Re: Mixing Motor Oils [shagnat]
Sep 11, 2013 (6:30 pm)
Thanks. I'm just planning ahead on what to do when the dipstick reading is close to the "add" line.
Sep 12, 2013 (1:31 am)
What do you think about topping off the Duralene 5W30 full synthetic that's in the crankcase with fresh Castrol 5W40 full synthetic that's approved by VW for use in the 2002 2.0 engine?
I already have cans of the Castrol, so it would be convenient and economical to use it if mixing the Duralene with Castrol doesn't harm the engine.
#8941 of 8944 Re: Ruking1 and Shipo [hpmctorque]
Sep 30, 2013 (4:09 pm)
I'm a little concerned that the car is supposed to have 5W40 and the shop put 5W30 in it. 30-weight oil is quite a bit lighter than 40-weight.