Question:
I normally use 5-30 for my '95. However, I ran out and have a lot of 20-50 on hand for my '72 Chevy (original engine). Can I top-up my '95 with this 20-50, until my next oil change? Also, for future ref, can I go with a grade that will be sufficient for both vehicles?
Answers:
I have an 86 fiero gt w/ a squeaky alternator belt, does this run my oil and water pump too?
Topping up in the hot temps is OK with the 20w50, I'd stick with 10w40 on the tracker for the oil change in summer months and stay with the 5w30 when it gets cold.The '72 you can go with 20w50 for the summer months and 10w30 for winter.
Would my petrol tank need flushing?
I'd write long ago .do not use thiick oil on small engines,the tolelances are minutes.and the engine depend a lot on the oil for coolant purposes.(mean. the thickier more hot due to lower speed in the oil gallery,)
lower speed cause that the oil get too hot in the gallery and sub-secuentilly burn inside the gallery and causing obstruction
How much does the 60,000 mile service for a 2002 Mazda Protege cost?
I don't like that picture.
Pro- Mechanic and shop owner(I know what I am saying)
The 20-50 will cause no problems used in both.
When "they" mean older vehicles,they dont mean the age of your vehicle,they mean how many miles are on it.Anything pushing 100,000(gas engine) is getting kinda old.Around this time of an engines life the seals start cracking and they start leaking a little bit.Also the engine components are getting older and a bit worn out and maybe start clattering around a bit because of the wear on them.Hence the use for heavier oil.Heavier oil will not leak out as fast from your bad gaskets and will help quiet down some of the worn out internal components and create more oil pressure.Hope this helps.
20w-50 will be fine especially if you have alot of miles but you may want to drop down to 10w-40 in colder climates.
While thicker oils are good for vehicles with over 75,000 miles, i would recommend a synthetic or synthetic blend. These oils will work great in both vehicles, and you can use the same viscosity for both. The very nice part about synthetics is they don't lose their viscosity after warming up. I had a 1990 Dodge Grand Caravan and I noticed a big difference in how the engine ran after changing the oil and replacing it with a synthetic blend. the oil pressure stayed up, even at idle, and it ran much smoother after warming up. Just my recommendation.
I just bought a feeler gauge, and it was all covered in oil...is this normal?
That's what people tell you when they own an engine that's worn out and needs rebuilding! The one's that you follow and all you can see is "smoke" but no vehicle? You don't use that if your engine is tight and runs well! It's the "poor mans overhaul"!More Questions & Answers ...
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