15w-50 Instead Of 15w-40

**niky** · February 13th, 2006 04:05 PM

Depends on the car naman. Mine takes 15w40 (gasoline)... others take 10w or 5w.

**finchy18** · February 13th, 2006 04:09 PM

pwde lng yan..

**islandermike** · February 17th, 2006 10:49 AM

In hot climates like the Philippines, 15w-50 or 15w-40 are the recommended mineral based engine oil but if you can get a hold of a 20w-40 it is much better because it has a narrower spread between the numbers, meaning less use of polymer which
is the substance that breaks down. Consumers Report tested the filtermag and they reported it works.
http://www.filtermag.com/?app=Automo...&makes=MERCURY

**islandermike** · February 17th, 2006 10:50 AM

In hot climates like the Philippines, 15w-50 or 15w-40 are the recommended mineral based engine oil but if you can get a hold of a 20w-40 it is much better because it has a narrower spread between the numbers, meaning less use of polymer which
is the substance that breaks down. Consumers Report tested the filtermag and they reported it works.
http://www.filtermag.com/

**theveed** · February 17th, 2006 01:54 PM

Originally Posted by islandermike

In hot climates like the Philippines, 15w-50 or 15w-40 are the recommended mineral based engine oil but if you can get a hold of a 20w-40 it is much better because it has a narrower spread between the numbers, meaning less use of polymer which
is the substance that breaks down. Consumers Report tested the filtermag and they reported it works.
http://www.filtermag.com/

Correct... The narrower the spread, the less additives and more oil.

**x-wind** · February 17th, 2006 11:33 PM

Originally Posted by islandermike

Viscousity means the abilty to flow. 15w-40 and 15w-50 have the same viscousity (15w) but the 50 can withstand a higher temp. Synthetic oil is usually good for new cars since the seals and gaskets have not expanded yet from using a regular oil. Synthetic oil tends to shrink the seals and gaskets, so if you use a synthetic oil after the gaskets have already been expanded for a better fit between two metals, synthetic oil will shrink them back and leak might develop. This is one reason why synthetic oil is not recommended for older cars. Oil viscousity is determined by using the drop ball test, which is dropping two stainless steel balls at the same time in a reference oil and oil being tested para malaman kapag nagbago ang viscousity this is usually done on big engines where changing oil every six months is not very cost effective. Viscosity changes in a dirty or contaminated oil which you can also translate as a change in the oil's ability to flow within your engine. Yon namang you see two numbers such as 15w-50 is because the first one is viscousity itself bago yong 50 is the highest temp it can withstand without the oil breaking down or loses its ability to protect your engine. 5W it thinner than 15W, ginagamit sa malalamig na lugar so that when you start your engine when the outside temp is 10degF oil will still flow to protect.

bro, ok lang ba after drain yun oil tank lagyan mo ng sae 40 and run engine for 10-15 mins. and drain again then refil with 15w-40. ok kaya to sae 40 panglinis lang sa loob.

**islandermike** · February 19th, 2006 07:10 AM

Originally Posted by x-wind

bro, ok lang ba after drain yun oil tank lagyan mo ng sae 40 and run engine for 10-15 mins. and drain again then refil with 15w-40. ok kaya to sae 40 panglinis lang sa loob.

Actually SAE 40 is very thick panglinis sa loob ng engine plus there is not a need to flush your engine unless you are switching from mineral based to synthetic of which you can use the 0W20 and ran it for about 20 minutes bago palit ng synthetic oil. Also, most current oil API rating is as follows, tingnan mo lang doon sa oil container:

SM Current For all automotive engines presently in use. Introduced in the API service symbol in November 2004

CH-4 Current Introduced in 1998 for high-speed four-stroke engines. CH-4 oils are specifically designed for use with diesel fuels ranging in sulphur content up to 0.5% weight. Can be used in place of CD, CE, CF-4 and CG-4.

SL Current For all automotive engines presently in use. Introduced in the API service symbol in 1998

CG-4 Current Introduced in 1995 for high-speed four-stroke engines. CG-4 oils are specifically designed for use with diesel fuels ranging in sulphur content less than 0.5% weight. CG-4 oil needs to be used for engines meeting 1994 emission standards.

SA, SB, SC, SJ, SE, SH ARE ALL OBSOLETE

**acenie** · February 20th, 2006 02:52 PM

Originally Posted by islandermike

Actually SAE 40 is very thick panglinis sa loob ng engine plus there is not a need to flush your engine unless you are switching from mineral based to synthetic of which you can use the 0W20 and ran it for about 20 minutes bago palit ng synthetic oil. Also, most current oil API rating is as follows, tingnan mo lang doon sa oil container:

SM Current For all automotive engines presently in use. Introduced in the API service symbol in November 2004

CH-4 Current Introduced in 1998 for high-speed four-stroke engines. CH-4 oils are specifically designed for use with diesel fuels ranging in sulphur content up to 0.5% weight. Can be used in place of CD, CE, CF-4 and CG-4.

SL Current For all automotive engines presently in use. Introduced in the API service symbol in 1998

CG-4 Current Introduced in 1995 for high-speed four-stroke engines. CG-4 oils are specifically designed for use with diesel fuels ranging in sulphur content less than 0.5% weight. CG-4 oil needs to be used for engines meeting 1994 emission standards.

SA, SB, SC, SJ, SE, SH ARE ALL OBSOLETE

CI-4 is the latest API Rating for diesels... like Delo 400, Mobil Delvac Mx..