* MSCI Asia-Pacific down 0.2 pct, Nikkei slips 0.2 pct
* Fed's policy statement coming later on Wed
* Fed expected to keep interest rates steady
* Eyes on Fed's view of economy, inflation outlook (Updates prices, adds comments)
By Masayuki Kitano
SINGAPORE, May 2 (Reuters) - Asian equities eased on Wednesday, while the dollar traded near a four-month high as investors await the Federal Reserve's upcoming policy statement for clues on the future pace of U.S. monetary tightening.
MSCI's broadest index of Asia-Pacific shares outside Japan fell 0.2 percent, while Japan's Nikkei shed 0.2 percent.
Stephen Innes, head of trading in Asia-Pacific for Oanda in Singapore, said that in addition to focusing on the Fed's policy statement equity investors may be turning cautious on the outlook for corporate profits, given potential cost pressures from recent rises in oil prices.
Market participants may be starting to wonder that "perhaps this is as good as it's going to get," Innes said, referring to corporate profits.
On Wall Street, the S&P 500 gained 0.25 percent on Tuesday, helped by optimism over U.S. trade negotiations.
Apple's shares rose about 4 percent after the closing bell. The company beat revenue and profit expectations in its March quarter, with its shares ending the regular session up 2.3 percent.
On Tuesday, the Dow Jones Industrial Average fell 0.27 percent while the Nasdaq Composite rose 0.9 percent.
The dollar's index against a basket of six major currencies traded near a four-month high set on Tuesday, with the dollar having surged into positive territory for 2018 ahead of the U.S. Federal Reserve's policy decision on Wednesday.
The Fed is seen set to hold interest rates steady this week but will likely encourage expectations that it will lift borrowing costs in June on the back of rising inflation and low unemployment. The central bank is due to announce its decision at 2 p.m. EDT (1800 GMT) on Wednesday.
The dollar index fell 0.1 percent to 92.379. It had risen on Tuesday to a peak near 92.570, its strongest level in nearly four months.
The dollar was underpinned by the outlook for a strong U.S. economy amid signs of slowdown elsewhere, especially in Europe.
The euro zone's economic momentum has been faltering and that seems to have prompted market players to trim their long positions in the euro, said Hirofumi Suzuki, an economist for Sumitomo Mitsui Banking Corporation in Singapore.
Against this backdrop, the dollar-buying trend will probably persist for a while, Suzuki added.
The euro edged up 0.1 percent to $1.2004. On Tuesday, the common currency had touched a low of $1.1981, its weakest level since Jan. 11.
Against the yen, the dollar struck its highest level in nearly three months at 109.92 yen in early Asian trade. It later pulled back to 109.73 yen, down 0.1 percent.
The benchmark U.S. 10-year Treasury yield was steady on the day at 2.978 percent.
Last week, the U.S. 10-year bond yield, the benchmark for global borrowing costs, had set a four-year high of 3.035 percent as bond prices fell on worries about the growing supply of government debt and inflationary pressures from rising oil prices.
The U.S. Treasury is scheduled to announce its findings from a refunding survey on Wednesday, with analysts projecting an increase in auction sizes, or new issuance at different points on the yield curve.
Oil prices were stable on Wednesday, supported by concerns that the United States may re-impose sanctions on major exporter Iran, although soaring U.S. supplies capped gains.
Brent crude oil futures edged up 0.1 percent to $73.21 a barrel. Last week, Brent crude had hit a three-year high of $75.47.
Reporting by Masayuki Kitano Editing by Eric Meijer